30752690 has 16 divisors (see below), whose sum is σ = 55500120. Its totient is φ = 12268800.

The previous prime is 30752681. The next prime is 30752693. The reversal of 30752690 is 9625703.

It can be written as a sum of positive squares in 4 ways, for example, as 29997529 + 755161 = 5477^2 + 869^2 .

It is a super-2 number, since 2×30752690² = 1891455884472200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30752693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176 + ... + 7844.

Almost surely, 2^30752690 is an apocalyptic number.

30752690 is a deficient number, since it is larger than the sum of its proper divisors (24747430).

30752690 is a wasteful number, since it uses less digits than its factorization.

30752690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8077.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 30752690 is about 5545.5107970321. The cubic root of 30752690 is about 313.3004630777.

The spelling of 30752690 in words is "thirty million, seven hundred fifty-two thousand, six hundred ninety".