426628844 has 6 divisors (see below), whose sum is σ = 746600484. Its totient is φ = 213314420.

The previous prime is 426628837. The next prime is 426628849. The reversal of 426628844 is 448826624.

It is a junction number, because it is equal to n+sod(n) for n = 426628795 and 426628804.

It is not an unprimeable number, because it can be changed into a prime (426628849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53328602 + ... + 53328609.

It is an arithmetic number, because the mean of its divisors is an integer number (124433414).

Almost surely, 2^426628844 is an apocalyptic number.

It is an amenable number.

426628844 is a deficient number, since it is larger than the sum of its proper divisors (319971640).

426628844 is a wasteful number, since it uses less digits than its factorization.

426628844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106657215 (or 106657213 counting only the distinct ones).

The product of its digits is 589824, while the sum is 44.

The square root of 426628844 is about 20654.9956184938. The cubic root of 426628844 is about 752.8065771399.

The spelling of 426628844 in words is "four hundred twenty-six million, six hundred twenty-eight thousand, eight hundred forty-four".