345231388 has 12 divisors (see below), whose sum is σ = 604497712. Its totient is φ = 172517760.

The previous prime is 345231379. The next prime is 345231409. The reversal of 345231388 is 883132543.

345231388 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×345231388² = 238369422520813088, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 16245 + ... + 30892.

Almost surely, 2^345231388 is an apocalyptic number.

It is an amenable number.

345231388 is a deficient number, since it is larger than the sum of its proper divisors (259266324).

345231388 is a wasteful number, since it uses less digits than its factorization.

345231388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48972 (or 48970 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 345231388 is about 18580.4033325437. The cubic root of 345231388 is about 701.5146711867.

The spelling of 345231388 in words is "three hundred forty-five million, two hundred thirty-one thousand, three hundred eighty-eight".