30664160 has 48 divisors (see below), whose sum is σ = 74145456. Its totient is φ = 11977728.

The previous prime is 30664159. The next prime is 30664169. The reversal of 30664160 is 6146603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30664169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4652 + ... + 9108.

It is an arithmetic number, because the mean of its divisors is an integer number (1544697).

Almost surely, 2^30664160 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 30664160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37072728).

30664160 is an abundant number, since it is smaller than the sum of its proper divisors (43481296).

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

30664160 is a wasteful number, since it uses less digits than its factorization.

30664160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515 (or 4507 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 30664160 is about 5537.5229119165. The cubic root of 30664160 is about 312.9995338655. Note that the first 3 decimals are identical.

The spelling of 30664160 in words is "thirty million, six hundred sixty-four thousand, one hundred sixty".