342642836 has 6 divisors (see below), whose sum is σ = 599624970. Its totient is φ = 171321416.

The previous prime is 342642823. The next prime is 342642869. The reversal of 342642836 is 638246243.

It can be written as a sum of positive squares in only one way, i.e., 325585936 + 17056900 = 18044^2 + 4130^2 .

It is a super-2 number, since 2×342642836² = 234808226124245792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 342642836.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42830351 + ... + 42830358.

It is an arithmetic number, because the mean of its divisors is an integer number (99937495).

Almost surely, 2^342642836 is an apocalyptic number.

It is an amenable number.

342642836 is a deficient number, since it is larger than the sum of its proper divisors (256982134).

342642836 is a wasteful number, since it uses less digits than its factorization.

342642836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85660713 (or 85660711 counting only the distinct ones).

The product of its digits is 165888, while the sum is 38.

The square root of 342642836 is about 18510.6141443227. The cubic root of 342642836 is about 699.7569469097.

The spelling of 342642836 in words is "three hundred forty-two million, six hundred forty-two thousand, eight hundred thirty-six".