30075372 has 18 divisors (see below), whose sum is σ = 76023948. Its totient is φ = 10025112.

The previous prime is 30075371. The next prime is 30075403. The reversal of 30075372 is 27357003.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (30075371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 417678 + ... + 417749.

Almost surely, 2^30075372 is an apocalyptic number.

It is an amenable number.

30075372 is an abundant number, since it is smaller than the sum of its proper divisors (45948576).

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

30075372 is a wasteful number, since it uses less digits than its factorization.

30075372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835437 (or 835432 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 27.

The square root of 30075372 is about 5484.1017496031. The cubic root of 30075372 is about 310.9832533381.

The spelling of 30075372 in words is "thirty million, seventy-five thousand, three hundred seventy-two".