454638628 has 12 divisors (see below), whose sum is σ = 796119772. Its totient is φ = 227175840.

The previous prime is 454638607. The next prime is 454638659. The reversal of 454638628 is 826836454.

It can be written as a sum of positive squares in 2 ways, for example, as 267715044 + 186923584 = 16362^2 + 13672^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28575 + ... + 41542.

Almost surely, 2^454638628 is an apocalyptic number.

It is an amenable number.

454638628 is a deficient number, since it is larger than the sum of its proper divisors (341481144).

454638628 is a wasteful number, since it uses less digits than its factorization.

454638628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71742 (or 71740 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 46.

The square root of 454638628 is about 21322.2566347936. The cubic root of 454638628 is about 768.9334917226.

The spelling of 454638628 in words is "four hundred fifty-four million, six hundred thirty-eight thousand, six hundred twenty-eight".