34639930 has 48 divisors (see below), whose sum is σ = 68515200. Its totient is φ = 12602304.

The previous prime is 34639921. The next prime is 34639939. The reversal of 34639930 is 3993643.

It is an interprime number because it is at equal distance from previous prime (34639921) and next prime (34639939).

It is a self number, because there is not a number n which added to its sum of digits gives 34639930.

It is not an unprimeable number, because it can be changed into a prime (34639939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173971 + ... + 174169.

It is an arithmetic number, because the mean of its divisors is an integer number (1427400).

Almost surely, 2^34639930 is an apocalyptic number.

34639930 is a deficient number, since it is larger than the sum of its proper divisors (33875270).

34639930 is a wasteful number, since it uses less digits than its factorization.

34639930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 37.

The square root of 34639930 is about 5885.5696410798. The cubic root of 34639930 is about 325.9810356941.

The spelling of 34639930 in words is "thirty-four million, six hundred thirty-nine thousand, nine hundred thirty".