34390644 has 36 divisors (see below), whose sum is σ = 81346272. Its totient is φ = 11307920.

The previous prime is 34390639. The next prime is 34390667. The reversal of 34390644 is 44609343.

It is a congruent number.

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, 205849 + ... + 206015.

Almost surely, 2^34390644 is an apocalyptic number.

It is an amenable number.

34390644 is an abundant number, since it is smaller than the sum of its proper divisors (46955628).

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

34390644 is a wasteful number, since it uses less digits than its factorization.

34390644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 34390644 is about 5864.3536728270. The cubic root of 34390644 is about 325.1971789658.

Adding to 34390644 its reverse (44609343), we get a palindrome (78999987).

The spelling of 34390644 in words is "thirty-four million, three hundred ninety thousand, six hundred forty-four".