455643427 has 16 divisors (see below), whose sum is σ = 492710400. Its totient is φ = 419994720.

The previous prime is 455643407. The next prime is 455643449. The reversal of 455643427 is 724346554.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455643427 is a prime.

It is a super-2 number, since 2×455643427² = 415221865136608658, 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 455643427.

It is not an unprimeable number, because it can be changed into a prime (455643407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160224 + ... + 163042.

It is an arithmetic number, because the mean of its divisors is an integer number (30794400).

Almost surely, 2^455643427 is an apocalyptic number.

455643427 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

455643427 is a deficient number, since it is larger than the sum of its proper divisors (37066973).

455643427 is a wasteful number, since it uses less digits than its factorization.

455643427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066.

The product of its digits is 403200, while the sum is 40.

The square root of 455643427 is about 21345.8058409609. The cubic root of 455643427 is about 769.4995494373.

The spelling of 455643427 in words is "four hundred fifty-five million, six hundred forty-three thousand, four hundred twenty-seven".