34640407 has 12 divisors (see below), whose sum is σ = 37368040. Its totient is φ = 32098176.

The previous prime is 34640383. The next prime is 34640447. The reversal of 34640407 is 70404643.

It is not a de Polignac number, because 34640407 - 2⁷ = 34640279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34640447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18469 + ... + 20257.

Almost surely, 2^34640407 is an apocalyptic number.

34640407 is a deficient number, since it is larger than the sum of its proper divisors (2727633).

34640407 is a wasteful number, since it uses less digits than its factorization.

34640407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890 (or 1873 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 34640407 is about 5885.6101637808. The cubic root of 34640407 is about 325.9825319658.

The spelling of 34640407 in words is "thirty-four million, six hundred forty thousand, four hundred seven".