342394815 has 16 divisors (see below), whose sum is σ = 626093568. Its totient is φ = 156523296.

The previous prime is 342394799. The next prime is 342394817. The reversal of 342394815 is 518493243.

It is not a de Polignac number, because 342394815 - 2⁴ = 342394799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342394817) 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, 1630347 + ... + 1630556.

It is an arithmetic number, because the mean of its divisors is an integer number (39130848).

Almost surely, 2^342394815 is an apocalyptic number.

342394815 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

342394815 is a deficient number, since it is larger than the sum of its proper divisors (283698753).

342394815 is a wasteful number, since it uses less digits than its factorization.

342394815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260918.

The product of its digits is 103680, while the sum is 39.

The square root of 342394815 is about 18503.9135049859. The cubic root of 342394815 is about 699.5880671590.

The spelling of 342394815 in words is "three hundred forty-two million, three hundred ninety-four thousand, eight hundred fifteen".