30102992 has 20 divisors (see below), whose sum is σ = 61394880. Its totient is φ = 14259168.

The previous prime is 30102991. The next prime is 30102997. The reversal of 30102992 is 29920103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49208 + ... + 49815.

It is an arithmetic number, because the mean of its divisors is an integer number (3069744).

Almost surely, 2^30102992 is an apocalyptic number.

It is an amenable number.

30102992 is an abundant number, since it is smaller than the sum of its proper divisors (31291888).

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

30102992 is a wasteful number, since it uses less digits than its factorization.

30102992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99050 (or 99044 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 30102992 is about 5486.6193598609. The cubic root of 30102992 is about 311.0784223402.

The spelling of 30102992 in words is "thirty million, one hundred two thousand, nine hundred ninety-two".