345260280 has 64 divisors (see below), whose sum is σ = 1037302560. Its totient is φ = 91934208.

The previous prime is 345260231. The next prime is 345260347. The reversal of 345260280 is 82062543.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100674 + ... + 104046.

Almost surely, 2^345260280 is an apocalyptic number.

345260280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

345260280 is an abundant number, since it is smaller than the sum of its proper divisors (692042280).

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

345260280 is a wasteful number, since it uses less digits than its factorization.

345260280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4240 (or 4236 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 345260280 is about 18581.1808020911. The cubic root of 345260280 is about 701.5342402808.

The spelling of 345260280 in words is "three hundred forty-five million, two hundred sixty thousand, two hundred eighty".