30803972 has 12 divisors (see below), whose sum is σ = 53946060. Its totient is φ = 15390816.

The previous prime is 30803951. The next prime is 30804031. The reversal of 30803972 is 27930803.

It can be written as a sum of positive squares in 2 ways, for example, as 10137856 + 20666116 = 3184^2 + 4546^2 .

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, 8354 + ... + 11462.

It is an arithmetic number, because the mean of its divisors is an integer number (4495505).

Almost surely, 2^30803972 is an apocalyptic number.

It is an amenable number.

30803972 is a deficient number, since it is larger than the sum of its proper divisors (23142088).

30803972 is a wasteful number, since it uses less digits than its factorization.

30803972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590 (or 5588 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 30803972 is about 5550.1326110283. The cubic root of 30803972 is about 313.4745156228.

The spelling of 30803972 in words is "thirty million, eight hundred three thousand, nine hundred seventy-two".