30889118 has 32 divisors (see below), whose sum is σ = 52436160. Its totient is φ = 13547520.

The previous prime is 30889097. The next prime is 30889121. The reversal of 30889118 is 81198803.

It is a super-2 number, since 2×30889118² = 1908275221635848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53246 + ... + 53822.

It is an arithmetic number, because the mean of its divisors is an integer number (1638630).

Almost surely, 2^30889118 is an apocalyptic number.

30889118 is a deficient number, since it is larger than the sum of its proper divisors (21547042).

30889118 is a wasteful number, since it uses less digits than its factorization.

30889118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 30889118 is about 5557.7979452297. The cubic root of 30889118 is about 313.7630773955.

The spelling of 30889118 in words is "thirty million, eight hundred eighty-nine thousand, one hundred eighteen".