47512740 has 96 divisors (see below), whose sum is σ = 146272896. Its totient is φ = 11427840.

The previous prime is 47512709. The next prime is 47512747. The reversal of 47512740 is 4721574.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 47512698 and 47512707.

It is not an unprimeable number, because it can be changed into a prime (47512747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127194 + ... + 127566.

It is an arithmetic number, because the mean of its divisors is an integer number (1523676).

Almost surely, 2^47512740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47512740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73136448).

47512740 is an abundant number, since it is smaller than the sum of its proper divisors (98760156).

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

47512740 is a wasteful number, since it uses less digits than its factorization.

47512740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 47512740 is about 6892.9485708222. The cubic root of 47512740 is about 362.1901974578.

The spelling of 47512740 in words is "forty-seven million, five hundred twelve thousand, seven hundred forty".