455643626 has 4 divisors (see below), whose sum is σ = 683465442. Its totient is φ = 227821812.

The previous prime is 455643613. The next prime is 455643637. The reversal of 455643626 is 626346554.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 626346554 = 2 ⋅313173277.

It can be written as a sum of positive squares in only one way, i.e., 443734225 + 11909401 = 21065^2 + 3451^2 .

It is a super-2 number, since 2×455643626² = 415222227828855752, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113910905 + ... + 113910908.

Almost surely, 2^455643626 is an apocalyptic number.

455643626 is a deficient number, since it is larger than the sum of its proper divisors (227821816).

455643626 is a wasteful number, since it uses less digits than its factorization.

455643626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227821815.

The product of its digits is 518400, while the sum is 41.

The square root of 455643626 is about 21345.8105022976. The cubic root of 455643626 is about 769.4996614623.

The spelling of 455643626 in words is "four hundred fifty-five million, six hundred forty-three thousand, six hundred twenty-six".