345556530 has 80 divisors (see below), whose sum is σ = 1013658624. Its totient is φ = 83769120.

The previous prime is 345556513. The next prime is 345556609. The reversal of 345556530 is 35655543.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10482 + ... + 28301.

Almost surely, 2^345556530 is an apocalyptic number.

345556530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

345556530 is an abundant number, since it is smaller than the sum of its proper divisors (668102094).

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

345556530 is a wasteful number, since it uses less digits than its factorization.

345556530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38813 (or 38804 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The square root of 345556530 is about 18589.1508681811. The cubic root of 345556530 is about 701.7348330089.

The spelling of 345556530 in words is "three hundred forty-five million, five hundred fifty-six thousand, five hundred thirty".