30993224 has 8 divisors (see below), whose sum is σ = 58112310. Its totient is φ = 15496608.

The previous prime is 30993139. The next prime is 30993251. The reversal of 30993224 is 42239903.

It can be written as a sum of positive squares in only one way, i.e., 30052324 + 940900 = 5482^2 + 970^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1937069 + ... + 1937084.

Almost surely, 2^30993224 is an apocalyptic number.

It is an amenable number.

30993224 is a deficient number, since it is larger than the sum of its proper divisors (27119086).

30993224 is a wasteful number, since it uses less digits than its factorization.

30993224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3874159 (or 3874155 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 30993224 is about 5567.1558268114. The cubic root of 30993224 is about 314.1151754043.

The spelling of 30993224 in words is "thirty million, nine hundred ninety-three thousand, two hundred twenty-four".