30167920 has 20 divisors (see below), whose sum is σ = 70140600. Its totient is φ = 12067136.

The previous prime is 30167887. The next prime is 30167957. The reversal of 30167920 is 2976103.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188470 + ... + 188629.

It is an arithmetic number, because the mean of its divisors is an integer number (3507030).

Almost surely, 2^30167920 is an apocalyptic number.

It is an amenable number.

30167920 is an abundant number, since it is smaller than the sum of its proper divisors (39972680).

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

30167920 is a wasteful number, since it uses less digits than its factorization.

30167920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377112 (or 377106 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 30167920 is about 5492.5331132366. The cubic root of 30167920 is about 311.3019128155.

The spelling of 30167920 in words is "thirty million, one hundred sixty-seven thousand, nine hundred twenty".