30122992 has 20 divisors (see below), whose sum is σ = 58674816. Its totient is φ = 14981120.

The previous prime is 30122951. The next prime is 30123001. The reversal of 30122992 is 29922103.

It is a self number, because there is not a number n which added to its sum of digits gives 30122992.

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, 1873 + ... + 7984.

Almost surely, 2^30122992 is an apocalyptic number.

It is an amenable number.

30122992 is a deficient number, since it is larger than the sum of its proper divisors (28551824).

30122992 is a wasteful number, since it uses less digits than its factorization.

30122992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10056 (or 10050 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 30122992 is about 5488.4416731892. The cubic root of 30122992 is about 311.1472991163.

The spelling of 30122992 in words is "thirty million, one hundred twenty-two thousand, nine hundred ninety-two".