455642630 has 8 divisors (see below), whose sum is σ = 820156752. Its totient is φ = 182257048.

The previous prime is 455642623. The next prime is 455642639. The reversal of 455642630 is 36246554.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×455642630² = 415220412546633800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455642639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22782122 + ... + 22782141.

It is an arithmetic number, because the mean of its divisors is an integer number (102519594).

Almost surely, 2^455642630 is an apocalyptic number.

455642630 is a deficient number, since it is larger than the sum of its proper divisors (364514122).

455642630 is a wasteful number, since it uses less digits than its factorization.

455642630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45564270.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 455642630 is about 21345.7871721799. The cubic root of 455642630 is about 769.4991007739.

The spelling of 455642630 in words is "four hundred fifty-five million, six hundred forty-two thousand, six hundred thirty".