30639050 has 24 divisors (see below), whose sum is σ = 61373676. Its totient is φ = 11312640.

The previous prime is 30639047. The next prime is 30639073. The reversal of 30639050 is 5093603.

It can be written as a sum of positive squares in 6 ways, for example, as 157609 + 30481441 = 397^2 + 5521^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22919 + ... + 24218.

Almost surely, 2^30639050 is an apocalyptic number.

30639050 is an abundant number, since it is smaller than the sum of its proper divisors (30734626).

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

30639050 is a wasteful number, since it uses less digits than its factorization.

30639050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47162 (or 47157 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 30639050 is about 5535.2551883359. The cubic root of 30639050 is about 312.9140750915.

The spelling of 30639050 in words is "thirty million, six hundred thirty-nine thousand, fifty".