30601872 has 90 divisors (see below), whose sum is σ = 99648198. Its totient is φ = 8741376.

The previous prime is 30601871. The next prime is 30601877. The reversal of 30601872 is 27810603.

It can be written as a sum of positive squares in only one way, i.e., 16941456 + 13660416 = 4116^2 + 3696^2 .

It is not an unprimeable number, because it can be changed into a prime (30601871) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4888 + ... + 9224.

Almost surely, 2^30601872 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 30601872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49824099).

30601872 is an abundant number, since it is smaller than the sum of its proper divisors (69046326).

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

30601872 is a wasteful number, since it uses less digits than its factorization.

30601872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4365 (or 4349 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 30601872 is about 5531.8958775451. The cubic root of 30601872 is about 312.7874585884.

The spelling of 30601872 in words is "thirty million, six hundred one thousand, eight hundred seventy-two".