30810996 has 24 divisors (see below), whose sum is σ = 79880640. Its totient is φ = 10270296.

The previous prime is 30810979. The next prime is 30811009. The reversal of 30810996 is 69901803.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 30810996.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 142536 + ... + 142751.

It is an arithmetic number, because the mean of its divisors is an integer number (3328360).

Almost surely, 2^30810996 is an apocalyptic number.

30810996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30810996 is an abundant number, since it is smaller than the sum of its proper divisors (49069644).

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

30810996 is a wasteful number, since it uses less digits than its factorization.

30810996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285300 (or 285292 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 30810996 is about 5550.7653526338. The cubic root of 30810996 is about 313.4983402307.

The spelling of 30810996 in words is "thirty million, eight hundred ten thousand, nine hundred ninety-six".