34638590 has 48 divisors (see below), whose sum is σ = 73084032. Its totient is φ = 11785536.

The previous prime is 34638587. The next prime is 34638601. The reversal of 34638590 is 9583643.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109112 + ... + 109428.

It is an arithmetic number, because the mean of its divisors is an integer number (1522584).

Almost surely, 2^34638590 is an apocalyptic number.

34638590 is an abundant number, since it is smaller than the sum of its proper divisors (38445442).

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

34638590 is a wasteful number, since it uses less digits than its factorization.

34638590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 34638590 is about 5885.4558022298. The cubic root of 34638590 is about 325.9768322578.

The spelling of 34638590 in words is "thirty-four million, six hundred thirty-eight thousand, five hundred ninety".