34640644 has 6 divisors (see below), whose sum is σ = 60621134. Its totient is φ = 17320320.

The previous prime is 34640633. The next prime is 34640657. The reversal of 34640644 is 44604643.

It can be written as a sum of positive squares in only one way, i.e., 33200644 + 1440000 = 5762^2 + 1200^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4330077 + ... + 4330084.

Almost surely, 2^34640644 is an apocalyptic number.

It is an amenable number.

34640644 is a deficient number, since it is larger than the sum of its proper divisors (25980490).

34640644 is a wasteful number, since it uses less digits than its factorization.

34640644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8660165 (or 8660163 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 34640644 is about 5885.6302975977. The cubic root of 34640644 is about 325.9832753913.

The spelling of 34640644 in words is "thirty-four million, six hundred forty thousand, six hundred forty-four".