30972296 has 8 divisors (see below), whose sum is σ = 58073070. Its totient is φ = 15486144.

The previous prime is 30972287. The next prime is 30972301. The reversal of 30972296 is 69227903.

It can be written as a sum of positive squares in only one way, i.e., 18369796 + 12602500 = 4286^2 + 3550^2 .

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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1935761 + ... + 1935776.

Almost surely, 2^30972296 is an apocalyptic number.

It is an amenable number.

30972296 is a deficient number, since it is larger than the sum of its proper divisors (27100774).

30972296 is a wasteful number, since it uses less digits than its factorization.

30972296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871543 (or 3871539 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 30972296 is about 5565.2759140945. The cubic root of 30972296 is about 314.0444579835.

The spelling of 30972296 in words is "thirty million, nine hundred seventy-two thousand, two hundred ninety-six".