342109405 has 16 divisors (see below), whose sum is σ = 449613504. Its totient is φ = 247828480.

The previous prime is 342109399. The next prime is 342109423. The reversal of 342109405 is 504901243.

It is not a de Polignac number, because 342109405 - 2⁵ = 342109373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2034 + ... + 26236.

It is an arithmetic number, because the mean of its divisors is an integer number (28100844).

Almost surely, 2^342109405 is an apocalyptic number.

It is an amenable number.

342109405 is a deficient number, since it is larger than the sum of its proper divisors (107504099).

342109405 is a wasteful number, since it uses less digits than its factorization.

342109405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24476.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 342109405 is about 18496.1997448124. The cubic root of 342109405 is about 699.3936279457.

The spelling of 342109405 in words is "three hundred forty-two million, one hundred nine thousand, four hundred five".