30992102 has 12 divisors (see below), whose sum is σ = 46881468. Its totient is φ = 15365700.

The previous prime is 30992089. The next prime is 30992107. The reversal of 30992102 is 20129903.

30992102 is nontrivially palindromic in base 15.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30992107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114227 + ... + 114497.

It is an arithmetic number, because the mean of its divisors is an integer number (3906789).

Almost surely, 2^30992102 is an apocalyptic number.

30992102 is a deficient number, since it is larger than the sum of its proper divisors (15889366).

30992102 is an equidigital number, since it uses as much as digits as its factorization.

30992102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755 (or 484 counting only the distinct ones).

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

The square root of 30992102 is about 5567.0550563112. The cubic root of 30992102 is about 314.1113848824. Note that the first 3 decimals are identical.

The spelling of 30992102 in words is "thirty million, nine hundred ninety-two thousand, one hundred two".