455638426 has 4 divisors (see below), whose sum is σ = 683457642. Its totient is φ = 227819212.

The previous prime is 455638399. The next prime is 455638427. The reversal of 455638426 is 624836554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624836554 = 2 ⋅312418277.

It can be written as a sum of positive squares in only one way, i.e., 367297225 + 88341201 = 19165^2 + 9399^2 .

It is not an unprimeable number, because it can be changed into a prime (455638427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113909605 + ... + 113909608.

Almost surely, 2^455638426 is an apocalyptic number.

455638426 is a deficient number, since it is larger than the sum of its proper divisors (227819216).

455638426 is a wasteful number, since it uses less digits than its factorization.

455638426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227819215.

The product of its digits is 691200, while the sum is 43.

The square root of 455638426 is about 21345.6886981891. The cubic root of 455638426 is about 769.4967341647.

The spelling of 455638426 in words is "four hundred fifty-five million, six hundred thirty-eight thousand, four hundred twenty-six".