30390892 has 12 divisors (see below), whose sum is σ = 60781840. Its totient is φ = 13024656.

The previous prime is 30390887. The next prime is 30390901. The reversal of 30390892 is 29809303.

30390892 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542667 + ... + 542722.

Almost surely, 2^30390892 is an apocalyptic number.

It is an amenable number.

30390892 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30390892 is a wasteful number, since it uses less digits than its factorization.

30390892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085400 (or 1085398 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 30390892 is about 5512.7934842510. The cubic root of 30390892 is about 312.0669782788.

The spelling of 30390892 in words is "thirty million, three hundred ninety thousand, eight hundred ninety-two".