345705930 has 48 divisors (see below), whose sum is σ = 912266784. Its totient is φ = 90810720.

The previous prime is 345705917. The next prime is 345705947. The reversal of 345705930 is 39507543.

345705930 is a `hidden beast` number, since 3 + 4 + 570 + 59 + 30 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22636 + ... + 34695.

It is an arithmetic number, because the mean of its divisors is an integer number (19005558).

Almost surely, 2^345705930 is an apocalyptic number.

345705930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

345705930 is an abundant number, since it is smaller than the sum of its proper divisors (566560854).

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

345705930 is a wasteful number, since it uses less digits than its factorization.

345705930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57411 (or 57408 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 345705930 is about 18593.1689068862. The cubic root of 345705930 is about 701.8359491984.

The spelling of 345705930 in words is "three hundred forty-five million, seven hundred five thousand, nine hundred thirty".