42974032 has 10 divisors (see below), whose sum is σ = 83262218. Its totient is φ = 21487008.

The previous prime is 42974021. The next prime is 42974033. The reversal of 42974032 is 23047924.

It can be written as a sum of positive squares in only one way, i.e., 34999056 + 7974976 = 5916^2 + 2824^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42973985 and 42974003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42974033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342923 + ... + 1342954.

Almost surely, 2^42974032 is an apocalyptic number.

It is an amenable number.

42974032 is a deficient number, since it is larger than the sum of its proper divisors (40288186).

42974032 is a wasteful number, since it uses less digits than its factorization.

42974032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685885 (or 2685879 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 42974032 is about 6555.4581838343. The cubic root of 42974032 is about 350.2692676195.

The spelling of 42974032 in words is "forty-two million, nine hundred seventy-four thousand, thirty-two".