47496640 has 56 divisors (see below), whose sum is σ = 119768112. Its totient is φ = 17879040.

The previous prime is 47496607. The next prime is 47496643. The reversal of 47496640 is 4669474.

47496640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×47496640² = 4511861622579200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 47496593 and 47496602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47496643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1075 + ... + 9805.

Almost surely, 2^47496640 is an apocalyptic number.

47496640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47496640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59884056).

47496640 is an abundant number, since it is smaller than the sum of its proper divisors (72271472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47496640 is a wasteful number, since it uses less digits than its factorization.

47496640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8765 (or 8755 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 47496640 is about 6891.7806117142. The cubic root of 47496640 is about 362.1492826705.

It can be divided in two parts, 4 and 7496640, that added together give a square (7496644 = 2738²).

The spelling of 47496640 in words is "forty-seven million, four hundred ninety-six thousand, six hundred forty".