345306426 has 16 divisors (see below), whose sum is σ = 706674144. Its totient is φ = 112425264.

The previous prime is 345306419. The next prime is 345306433. The reversal of 345306426 is 624603543.

It is an interprime number because it is at equal distance from previous prime (345306419) and next prime (345306433).

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, 668941 + ... + 669456.

It is an arithmetic number, because the mean of its divisors is an integer number (44167134).

Almost surely, 2^345306426 is an apocalyptic number.

345306426 is an abundant number, since it is smaller than the sum of its proper divisors (361367718).

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

345306426 is a wasteful number, since it uses less digits than its factorization.

345306426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338445.

The product of its (nonzero) digits is 51840, while the sum is 33.

The square root of 345306426 is about 18582.4225008474. The cubic root of 345306426 is about 701.5654935688.

Adding to 345306426 its reverse (624603543), we get a palindrome (969909969).

The spelling of 345306426 in words is "three hundred forty-five million, three hundred six thousand, four hundred twenty-six".