30073970 has 16 divisors (see below), whose sum is σ = 55596888. Its totient is φ = 11704320.

The previous prime is 30073963. The next prime is 30073973. The reversal of 30073970 is 7937003.

It can be written as a sum of positive squares in 4 ways, for example, as 29931841 + 142129 = 5471^2 + 377^2 .

It is not an unprimeable number, because it can be changed into a prime (30073973) by changing a digit.

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, 40271 + ... + 41010.

Almost surely, 2^30073970 is an apocalyptic number.

30073970 is a deficient number, since it is larger than the sum of its proper divisors (25522918).

30073970 is a wasteful number, since it uses less digits than its factorization.

30073970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81325.

The product of its (nonzero) digits is 3969, while the sum is 29.

The square root of 30073970 is about 5483.9739240810. The cubic root of 30073970 is about 310.9784209756.

The spelling of 30073970 in words is "thirty million, seventy-three thousand, nine hundred seventy".