345688472 has 64 divisors (see below), whose sum is σ = 705672000. Its totient is φ = 158146560.

The previous prime is 345688463. The next prime is 345688487. The reversal of 345688472 is 274886543.

Its product of digits (1290240) is a multiple of the sum of its prime divisors (512).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1434272 + ... + 1434512.

It is an arithmetic number, because the mean of its divisors is an integer number (11026125).

Almost surely, 2^345688472 is an apocalyptic number.

It is an amenable number.

345688472 is an abundant number, since it is smaller than the sum of its proper divisors (359983528).

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

345688472 is a wasteful number, since it uses less digits than its factorization.

345688472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 512 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 47.

The square root of 345688472 is about 18592.6994274635. The cubic root of 345688472 is about 701.8241348622.

The spelling of 345688472 in words is "three hundred forty-five million, six hundred eighty-eight thousand, four hundred seventy-two".