34640472 has 16 divisors (see below), whose sum is σ = 86601240. Its totient is φ = 11546816.

The previous prime is 34640467. The next prime is 34640479. The reversal of 34640472 is 27404643.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34640479) 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, 721653 + ... + 721700.

Almost surely, 2^34640472 is an apocalyptic number.

It is an amenable number.

34640472 is an abundant number, since it is smaller than the sum of its proper divisors (51960768).

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

34640472 is a wasteful number, since it uses less digits than its factorization.

34640472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443362 (or 1443358 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 34640472 is about 5885.6156857206. The cubic root of 34640472 is about 325.9827358592.

The spelling of 34640472 in words is "thirty-four million, six hundred forty thousand, four hundred seventy-two".