30500836 has 6 divisors (see below), whose sum is σ = 53376470. Its totient is φ = 15250416.

The previous prime is 30500831. The next prime is 30500849. The reversal of 30500836 is 63800503.

It can be written as a sum of positive squares in only one way, i.e., 26460736 + 4040100 = 5144^2 + 2010^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30500836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30500831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3812601 + ... + 3812608.

Almost surely, 2^30500836 is an apocalyptic number.

It is an amenable number.

30500836 is a deficient number, since it is larger than the sum of its proper divisors (22875634).

30500836 is a wasteful number, since it uses less digits than its factorization.

30500836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7625213 (or 7625211 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 30500836 is about 5522.7561959587. The cubic root of 30500836 is about 312.4428430932.

The spelling of 30500836 in words is "thirty million, five hundred thousand, eight hundred thirty-six".