30790906 has 16 divisors (see below), whose sum is σ = 48765600. Its totient is φ = 14540688.

The previous prime is 30790901. The next prime is 30790943. The reversal of 30790906 is 60909703.

It is not an unprimeable number, because it can be changed into a prime (30790901) 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, 13741 + ... + 15823.

It is an arithmetic number, because the mean of its divisors is an integer number (3047850).

Almost surely, 2^30790906 is an apocalyptic number.

30790906 is a deficient number, since it is larger than the sum of its proper divisors (17974694).

30790906 is a wasteful number, since it uses less digits than its factorization.

30790906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 30790906 is about 5548.9553971896. The cubic root of 30790906 is about 313.4301876027.

The spelling of 30790906 in words is "thirty million, seven hundred ninety thousand, nine hundred six".