345373872 has 20 divisors (see below), whose sum is σ = 892215960. Its totient is φ = 115124608.

The previous prime is 345373829. The next prime is 345373879. The reversal of 345373872 is 278373543.

It is a super-2 number, since 2×345373872² = 238566222920544768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (345373879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3597597 + ... + 3597692.

It is an arithmetic number, because the mean of its divisors is an integer number (44610798).

Almost surely, 2^345373872 is an apocalyptic number.

It is an amenable number.

345373872 is an abundant number, since it is smaller than the sum of its proper divisors (546842088).

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

345373872 is a wasteful number, since it uses less digits than its factorization.

345373872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7195300 (or 7195294 counting only the distinct ones).

The product of its digits is 423360, while the sum is 42.

The square root of 345373872 is about 18584.2371917709. The cubic root of 345373872 is about 701.6111676931.

The spelling of 345373872 in words is "three hundred forty-five million, three hundred seventy-three thousand, eight hundred seventy-two".