30640160 has 48 divisors (see below), whose sum is σ = 76204800. Its totient is φ = 11609856.

The previous prime is 30640157. The next prime is 30640177. The reversal of 30640160 is 6104603.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2000 + ... + 8079.

It is an arithmetic number, because the mean of its divisors is an integer number (1587600).

Almost surely, 2^30640160 is an apocalyptic number.

It is an amenable number.

30640160 is an abundant number, since it is smaller than the sum of its proper divisors (45564640).

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

30640160 is a wasteful number, since it uses less digits than its factorization.

30640160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10113 (or 10105 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 30640160 is about 5535.3554538078. The cubic root of 30640160 is about 312.9178538251.

Adding to 30640160 its reverse (6104603), we get a palindrome (36744763).

The spelling of 30640160 in words is "thirty million, six hundred forty thousand, one hundred sixty".