30057472 has 44 divisors (see below), whose sum is σ = 60795900. Its totient is φ = 14852096.

The previous prime is 30057463. The next prime is 30057523. The reversal of 30057472 is 27475003.

It can be written as a sum of positive squares in 2 ways, for example, as 18113536 + 11943936 = 4256^2 + 3456^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30057472.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152478 + ... + 152674.

It is an arithmetic number, because the mean of its divisors is an integer number (1381725).

Almost surely, 2^30057472 is an apocalyptic number.

30057472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30057472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30397950).

30057472 is an abundant number, since it is smaller than the sum of its proper divisors (30738428).

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

30057472 is a wasteful number, since it uses less digits than its factorization.

30057472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 30057472 is about 5482.4695165591. The cubic root of 30057472 is about 310.9215449857.

The spelling of 30057472 in words is "thirty million, fifty-seven thousand, four hundred seventy-two".