34972428 has 12 divisors (see below), whose sum is σ = 81602360. Its totient is φ = 11657472.

The previous prime is 34972423. The next prime is 34972453. The reversal of 34972428 is 82427943.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (34972423) 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, 1457173 + ... + 1457196.

Almost surely, 2^34972428 is an apocalyptic number.

It is an amenable number.

34972428 is an abundant number, since it is smaller than the sum of its proper divisors (46629932).

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

34972428 is a wasteful number, since it uses less digits than its factorization.

34972428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914376 (or 2914374 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 34972428 is about 5913.7490646797. The cubic root of 34972428 is about 327.0207133677.

The spelling of 34972428 in words is "thirty-four million, nine hundred seventy-two thousand, four hundred twenty-eight".