345990418 has 16 divisors (see below), whose sum is σ = 550609920. Its totient is φ = 162597456.

The previous prime is 345990401. The next prime is 345990481. The reversal of 345990418 is 814099543.

It is a happy number.

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, 31021 + ... + 40672.

It is an arithmetic number, because the mean of its divisors is an integer number (34413120).

Almost surely, 2^345990418 is an apocalyptic number.

345990418 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

345990418 is a deficient number, since it is larger than the sum of its proper divisors (204619502).

345990418 is a wasteful number, since it uses less digits than its factorization.

345990418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71841.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 345990418 is about 18600.8176701993. The cubic root of 345990418 is about 702.0284144742.

The spelling of 345990418 in words is "three hundred forty-five million, nine hundred ninety thousand, four hundred eighteen".