30409168 has 20 divisors (see below), whose sum is σ = 60950340. Its totient is φ = 14680064.

The previous prime is 30409163. The next prime is 30409189. The reversal of 30409168 is 86190403.

It can be written as a sum of positive squares in 2 ways, for example, as 26132544 + 4276624 = 5112^2 + 2068^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30409163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32305 + ... + 33232.

It is an arithmetic number, because the mean of its divisors is an integer number (3047517).

Almost surely, 2^30409168 is an apocalyptic number.

It is an amenable number.

30409168 is an abundant number, since it is smaller than the sum of its proper divisors (30541172).

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

30409168 is a wasteful number, since it uses less digits than its factorization.

30409168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65574 (or 65568 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 30409168 is about 5514.4508339453. The cubic root of 30409168 is about 312.1295210654.

The spelling of 30409168 in words is "thirty million, four hundred nine thousand, one hundred sixty-eight".