342606321 has 72 divisors (see below), whose sum is σ = 570430560. Its totient is φ = 203144832.

The previous prime is 342606289. The next prime is 342606337. The reversal of 342606321 is 123606243.

342606321 is a `hidden beast` number, since 3 + 4 + 26 + 0 + 632 + 1 = 666.

It is not a de Polignac number, because 342606321 - 2⁵ = 342606289 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (342606391) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4127746 + ... + 4127828.

Almost surely, 2^342606321 is an apocalyptic number.

It is an amenable number.

342606321 is a deficient number, since it is larger than the sum of its proper divisors (227824239).

342606321 is a wasteful number, since it uses less digits than its factorization.

342606321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 342606321 is about 18509.6277920438. The cubic root of 342606321 is about 699.7320886317.

The spelling of 342606321 in words is "three hundred forty-two million, six hundred six thousand, three hundred twenty-one".