455872642 has 16 divisors (see below), whose sum is σ = 695830464. Its totient is φ = 223938000.

The previous prime is 455872633. The next prime is 455872661. The reversal of 455872642 is 246278554.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141267 + ... + 144457.

It is an arithmetic number, because the mean of its divisors is an integer number (43489404).

Almost surely, 2^455872642 is an apocalyptic number.

455872642 is a deficient number, since it is larger than the sum of its proper divisors (239957822).

455872642 is a wasteful number, since it uses less digits than its factorization.

455872642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425.

The product of its digits is 537600, while the sum is 43.

The square root of 455872642 is about 21351.1742534222. The cubic root of 455872642 is about 769.6285620675.

The spelling of 455872642 in words is "four hundred fifty-five million, eight hundred seventy-two thousand, six hundred forty-two".