345294279 has 32 divisors (see below), whose sum is σ = 564364800. Its totient is φ = 206902080.

The previous prime is 345294263. The next prime is 345294319. The reversal of 345294279 is 972492543.

It is not a de Polignac number, because 345294279 - 2⁴ = 345294263 is a prime.

It is a super-2 number, since 2×345294279² = 238456278220259682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345294179) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19902 + ... + 32964.

It is an arithmetic number, because the mean of its divisors is an integer number (17636400).

Almost surely, 2^345294279 is an apocalyptic number.

345294279 is a deficient number, since it is larger than the sum of its proper divisors (219070521).

345294279 is a wasteful number, since it uses less digits than its factorization.

345294279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13172 (or 13166 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 345294279 is about 18582.0956568413. The cubic root of 345294279 is about 701.5572670436.

The spelling of 345294279 in words is "three hundred forty-five million, two hundred ninety-four thousand, two hundred seventy-nine".