34909072 has 20 divisors (see below), whose sum is σ = 73785456. Its totient is φ = 15867680.

The previous prime is 34909051. The next prime is 34909097. The reversal of 34909072 is 27090943.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98998 + ... + 99349.

Almost surely, 2^34909072 is an apocalyptic number.

It is an amenable number.

34909072 is an abundant number, since it is smaller than the sum of its proper divisors (38876384).

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

34909072 is a wasteful number, since it uses less digits than its factorization.

34909072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198366 (or 198360 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 34909072 is about 5908.3899668184. The cubic root of 34909072 is about 326.8231172475.

The spelling of 34909072 in words is "thirty-four million, nine hundred nine thousand, seventy-two".