342479640 has 64 divisors (see below), whose sum is σ = 1046844000. Its totient is φ = 89603072.

The previous prime is 342479611. The next prime is 342479653. The reversal of 342479640 is 46974243.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20565 + ... + 33284.

Almost surely, 2^342479640 is an apocalyptic number.

342479640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

342479640 is an abundant number, since it is smaller than the sum of its proper divisors (704364360).

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

342479640 is a wasteful number, since it uses less digits than its factorization.

342479640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53916 (or 53912 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 342479640 is about 18506.2054457417. The cubic root of 342479640 is about 699.6458344453.

The spelling of 342479640 in words is "three hundred forty-two million, four hundred seventy-nine thousand, six hundred forty".