330857642 has 4 divisors (see below), whose sum is σ = 496286466. Its totient is φ = 165428820.

The previous prime is 330857567. The next prime is 330857677. The reversal of 330857642 is 246758033.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 214886281 + 115971361 = 14659^2 + 10769^2 .

It is a junction number, because it is equal to n+sod(n) for n = 330857596 and 330857605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82714409 + ... + 82714412.

Almost surely, 2^330857642 is an apocalyptic number.

330857642 is a deficient number, since it is larger than the sum of its proper divisors (165428824).

330857642 is a wasteful number, since it uses less digits than its factorization.

330857642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165428823.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 330857642 is about 18189.4926262389. The cubic root of 330857642 is about 691.6404585866.

The spelling of 330857642 in words is "three hundred thirty million, eight hundred fifty-seven thousand, six hundred forty-two".