426626844 has 24 divisors (see below), whose sum is σ = 1137671808. Its totient is φ = 121893360.

The previous prime is 426626843. The next prime is 426626873. The reversal of 426626844 is 448626624.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 426626796 and 426626805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426626843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2539362 + ... + 2539529.

It is an arithmetic number, because the mean of its divisors is an integer number (47402992).

Almost surely, 2^426626844 is an apocalyptic number.

It is an amenable number.

426626844 is an abundant number, since it is smaller than the sum of its proper divisors (711044964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426626844 is a wasteful number, since it uses less digits than its factorization.

426626844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078905 (or 5078903 counting only the distinct ones).

The product of its digits is 442368, while the sum is 42.

The square root of 426626844 is about 20654.9472039993. The cubic root of 426626844 is about 752.8054007735.

The spelling of 426626844 in words is "four hundred twenty-six million, six hundred twenty-six thousand, eight hundred forty-four".