345499680 has 48 divisors (see below), whose sum is σ = 1088325504. Its totient is φ = 92133120.

The previous prime is 345499657. The next prime is 345499697. The reversal of 345499680 is 86994543.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359416 + ... + 360375.

It is an arithmetic number, because the mean of its divisors is an integer number (22673448).

Almost surely, 2^345499680 is an apocalyptic number.

345499680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

345499680 is an abundant number, since it is smaller than the sum of its proper divisors (742825824).

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

345499680 is a wasteful number, since it uses less digits than its factorization.

345499680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719809 (or 719801 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 345499680 is about 18587.6216875640. The cubic root of 345499680 is about 701.6963484102.

The spelling of 345499680 in words is "three hundred forty-five million, four hundred ninety-nine thousand, six hundred eighty".