47642432 has 28 divisors (see below), whose sum is σ = 100103940. Its totient is φ = 22419456.

The previous prime is 47642431. The next prime is 47642459. The reversal of 47642432 is 23424674.

It can be written as a sum of positive squares in 2 ways, for example, as 38738176 + 8904256 = 6224^2 + 2984^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47642431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20807 + ... + 22982.

Almost surely, 2^47642432 is an apocalyptic number.

It is an amenable number.

47642432 is an abundant number, since it is smaller than the sum of its proper divisors (52461508).

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

47642432 is a wasteful number, since it uses less digits than its factorization.

47642432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43818 (or 43808 counting only the distinct ones).

The product of its digits is 32256, while the sum is 32.

The square root of 47642432 is about 6902.3497448333. The cubic root of 47642432 is about 362.5194459644.

The spelling of 47642432 in words is "forty-seven million, six hundred forty-two thousand, four hundred thirty-two".