47326640 has 120 divisors (see below), whose sum is σ = 123340320. Its totient is φ = 16850944.

The previous prime is 47326639. The next prime is 47326649. The reversal of 47326640 is 4662374.

It is a junction number, because it is equal to n+sod(n) for n = 47326597 and 47326606.

It is not an unprimeable number, because it can be changed into a prime (47326649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 531716 + ... + 531804.

It is an arithmetic number, because the mean of its divisors is an integer number (1027836).

Almost surely, 2^47326640 is an apocalyptic number.

47326640 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 47326640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61670160).

47326640 is an abundant number, since it is smaller than the sum of its proper divisors (76013680).

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

47326640 is a wasteful number, since it uses less digits than its factorization.

47326640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 47326640 is about 6879.4360233961. The cubic root of 47326640 is about 361.7166978528.

The spelling of 47326640 in words is "forty-seven million, three hundred twenty-six thousand, six hundred forty".