30445164 has 36 divisors (see below), whose sum is σ = 81487224. Its totient is φ = 9551232.

The previous prime is 30445159. The next prime is 30445183. The reversal of 30445164 is 46154403.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24262 + ... + 25485.

It is an arithmetic number, because the mean of its divisors is an integer number (2263534).

Almost surely, 2^30445164 is an apocalyptic number.

30445164 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

30445164 is an abundant number, since it is smaller than the sum of its proper divisors (51042060).

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

30445164 is a wasteful number, since it uses less digits than its factorization.

30445164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49774 (or 49769 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 30445164 is about 5517.7136569416. The cubic root of 30445164 is about 312.2526306920.

Adding to 30445164 its reverse (46154403), we get a palindrome (76599567).

The spelling of 30445164 in words is "thirty million, four hundred forty-five thousand, one hundred sixty-four".