34640425 has 12 divisors (see below), whose sum is σ = 43028496. Its totient is φ = 27664400.

The previous prime is 34640383. The next prime is 34640447. The reversal of 34640425 is 52404643.

It is not a de Polignac number, because 34640425 - 2¹⁷ = 34509353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34640393 and 34640402.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23562 + ... + 24988.

It is an arithmetic number, because the mean of its divisors is an integer number (3585708).

Almost surely, 2^34640425 is an apocalyptic number.

It is an amenable number.

34640425 is a deficient number, since it is larger than the sum of its proper divisors (8388071).

34640425 is a wasteful number, since it uses less digits than its factorization.

34640425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408 (or 2403 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 34640425 is about 5885.6116929339. The cubic root of 34640425 is about 325.9825884286.

The spelling of 34640425 in words is "thirty-four million, six hundred forty thousand, four hundred twenty-five".