342605639 has 16 divisors (see below), whose sum is σ = 359399040. Its totient is φ = 326319840.

The previous prime is 342605611. The next prime is 342605693. The reversal of 342605639 is 936506243.

It is not a de Polignac number, because 342605639 - 2¹⁶ = 342540103 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 (342605239) 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, 313484 + ... + 314574.

It is an arithmetic number, because the mean of its divisors is an integer number (22462440).

Almost surely, 2^342605639 is an apocalyptic number.

342605639 is a deficient number, since it is larger than the sum of its proper divisors (16793401).

342605639 is a wasteful number, since it uses less digits than its factorization.

342605639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310.

The product of its (nonzero) digits is 116640, while the sum is 38.

The square root of 342605639 is about 18509.6093691898. The cubic root of 342605639 is about 699.7316243305.

The spelling of 342605639 in words is "three hundred forty-two million, six hundred five thousand, six hundred thirty-nine".