426744624 has 20 divisors (see below), whose sum is σ = 1102423736. Its totient is φ = 142248192.

The previous prime is 426744623. The next prime is 426744629. The reversal of 426744624 is 426447624.

It is a happy number.

It is a super-2 number, since 2×426744624² = 364221948225802752, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (426744623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4445209 + ... + 4445304.

Almost surely, 2^426744624 is an apocalyptic number.

It is an amenable number.

426744624 is an abundant number, since it is smaller than the sum of its proper divisors (675679112).

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

426744624 is a wasteful number, since it uses less digits than its factorization.

426744624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8890524 (or 8890518 counting only the distinct ones).

The product of its digits is 258048, while the sum is 39.

The square root of 426744624 is about 20657.7981401697. The cubic root of 426744624 is about 752.8746707247.

The spelling of 426744624 in words is "four hundred twenty-six million, seven hundred forty-four thousand, six hundred twenty-four".