30166720 has 56 divisors (see below), whose sum is σ = 74176128. Its totient is φ = 11673600.

The previous prime is 30166681. The next prime is 30166733. The reversal of 30166720 is 2766103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8400 + ... + 11440.

Almost surely, 2^30166720 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 30166720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37088064).

30166720 is an abundant number, since it is smaller than the sum of its proper divisors (44009408).

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

30166720 is a wasteful number, since it uses less digits than its factorization.

30166720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089 (or 3079 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 30166720 is about 5492.4238729362. The cubic root of 30166720 is about 311.2977851720.

The spelling of 30166720 in words is "thirty million, one hundred sixty-six thousand, seven hundred twenty".