30083172 has 72 divisors (see below), whose sum is σ = 83985216. Its totient is φ = 8209344.

The previous prime is 30083167. The next prime is 30083173. The reversal of 30083172 is 27138003.

It is not an unprimeable number, because it can be changed into a prime (30083173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44098 + ... + 44774.

Almost surely, 2^30083172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30083172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41992608).

30083172 is an abundant number, since it is smaller than the sum of its proper divisors (53902044).

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

30083172 is a wasteful number, since it uses less digits than its factorization.

30083172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 30083172 is about 5484.8128500433. The cubic root of 30083172 is about 311.0101353520.

The spelling of 30083172 in words is "thirty million, eighty-three thousand, one hundred seventy-two".