345790988 has 24 divisors (see below), whose sum is σ = 631693440. Its totient is φ = 165432960.

The previous prime is 345790981. The next prime is 345790997. The reversal of 345790988 is 889097543.

It is a super-2 number, since 2×345790988² = 239142814764032288, which contains 22 as substring.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (345790981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4631 + ... + 26702.

It is an arithmetic number, because the mean of its divisors is an integer number (26320560).

Almost surely, 2^345790988 is an apocalyptic number.

It is an amenable number.

345790988 is a deficient number, since it is larger than the sum of its proper divisors (285902452).

345790988 is a wasteful number, since it uses less digits than its factorization.

345790988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31457 (or 31455 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 345790988 is about 18595.4561116419. The cubic root of 345790988 is about 701.8935047311.

The spelling of 345790988 in words is "three hundred forty-five million, seven hundred ninety thousand, nine hundred eighty-eight".