30790818 has 12 divisors (see below), whose sum is σ = 66713478. Its totient is φ = 10263600.

The previous prime is 30790817. The next prime is 30790829. The reversal of 30790818 is 81809703.

It can be written as a sum of positive squares in only one way, i.e., 30769209 + 21609 = 5547^2 + 147^2 .

It is not an unprimeable number, because it can be changed into a prime (30790817) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 855283 + ... + 855318.

Almost surely, 2^30790818 is an apocalyptic number.

30790818 is an abundant number, since it is smaller than the sum of its proper divisors (35922660).

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

30790818 is a wasteful number, since it uses less digits than its factorization.

30790818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710609 (or 1710606 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 30790818 is about 5548.9474677636. The cubic root of 30790818 is about 313.4298890094.

It can be divided in two parts, 307 and 90818, that added together give a cube (91125 = 45³).

The spelling of 30790818 in words is "thirty million, seven hundred ninety thousand, eight hundred eighteen".