342672738 has 16 divisors (see below), whose sum is σ = 686662176. Its totient is φ = 114004800.

The previous prime is 342672709. The next prime is 342672761. The reversal of 342672738 is 837276243.

It is a self number, because there is not a number n which added to its sum of digits gives 342672738.

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 7 ways as a sum of consecutive naturals, for example, 51463 + ... + 57738.

It is an arithmetic number, because the mean of its divisors is an integer number (42916386).

Almost surely, 2^342672738 is an apocalyptic number.

342672738 is an abundant number, since it is smaller than the sum of its proper divisors (343989438).

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

342672738 is a wasteful number, since it uses less digits than its factorization.

342672738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109729.

The product of its digits is 338688, while the sum is 42.

The square root of 342672738 is about 18511.4218254568. The cubic root of 342672738 is about 699.7773019475. Note that the first 3 decimals are identical.

The spelling of 342672738 in words is "three hundred forty-two million, six hundred seventy-two thousand, seven hundred thirty-eight".