30890612 has 6 divisors (see below), whose sum is σ = 54058578. Its totient is φ = 15445304.

The previous prime is 30890603. The next prime is 30890681. The reversal of 30890612 is 21609803.

It can be written as a sum of positive squares in only one way, i.e., 30758116 + 132496 = 5546^2 + 364^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3861323 + ... + 3861330.

It is an arithmetic number, because the mean of its divisors is an integer number (9009763).

Almost surely, 2^30890612 is an apocalyptic number.

It is an amenable number.

30890612 is a deficient number, since it is larger than the sum of its proper divisors (23167966).

30890612 is a wasteful number, since it uses less digits than its factorization.

30890612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7722657 (or 7722655 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 30890612 is about 5557.9323493544. The cubic root of 30890612 is about 313.7681358595.

The spelling of 30890612 in words is "thirty million, eight hundred ninety thousand, six hundred twelve".