345400458 has 32 divisors (see below), whose sum is σ = 787703616. Its totient is φ = 100025088.

The previous prime is 345400457. The next prime is 345400493. The reversal of 345400458 is 854004543.

It is not an unprimeable number, because it can be changed into a prime (345400457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128916 + ... + 131567.

It is an arithmetic number, because the mean of its divisors is an integer number (24615738).

Almost surely, 2^345400458 is an apocalyptic number.

345400458 is an abundant number, since it is smaller than the sum of its proper divisors (442303158).

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

345400458 is a wasteful number, since it uses less digits than its factorization.

345400458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260518.

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 345400458 is about 18584.9524616018. The cubic root of 345400458 is about 701.6291699774.

The spelling of 345400458 in words is "three hundred forty-five million, four hundred thousand, four hundred fifty-eight".