30440160 has 72 divisors (see below), whose sum is σ = 103881960. Its totient is φ = 8116992.

The previous prime is 30440141. The next prime is 30440191. The reversal of 30440160 is 6104403.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 9130 + ... + 12009.

It is an arithmetic number, because the mean of its divisors is an integer number (1442805).

Almost surely, 2^30440160 is an apocalyptic number.

30440160 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30440160 is an abundant number, since it is smaller than the sum of its proper divisors (73441800).

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

30440160 is a wasteful number, since it uses less digits than its factorization.

30440160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21160 (or 21149 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30440160 is about 5517.2601896231. The cubic root of 30440160 is about 312.2355223615.

Adding to 30440160 its reverse (6104403), we get a palindrome (36544563).

The spelling of 30440160 in words is "thirty million, four hundred forty thousand, one hundred sixty".