342808399 has 12 divisors (see below), whose sum is σ = 365152536. Its totient is φ = 321690512.

The previous prime is 342808373. The next prime is 342808429. The reversal of 342808399 is 993808243.

It is not a de Polignac number, because 342808399 - 2¹⁷ = 342677327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342808799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21924 + ... + 34150.

It is an arithmetic number, because the mean of its divisors is an integer number (30429378).

Almost surely, 2^342808399 is an apocalyptic number.

342808399 is a deficient number, since it is larger than the sum of its proper divisors (22344137).

342808399 is a wasteful number, since it uses less digits than its factorization.

342808399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12326 (or 12303 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 342808399 is about 18515.0857140873. The cubic root of 342808399 is about 699.8696349065.

The spelling of 342808399 in words is "three hundred forty-two million, eight hundred eight thousand, three hundred ninety-nine".