4431623426 has 16 divisors (see below), whose sum is σ = 6673573368. Its totient is φ = 2207116800.

The previous prime is 4431623363. The next prime is 4431623477. The reversal of 4431623426 is 6243261344.

It can be written as a sum of positive squares in 4 ways, for example, as 1606807225 + 2824816201 = 40085^2 + 53149^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561266 + ... + 569106.

Almost surely, 2^4431623426 is an apocalyptic number.

4431623426 is a deficient number, since it is larger than the sum of its proper divisors (2241949942).

4431623426 is a wasteful number, since it uses less digits than its factorization.

4431623426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8917.

The product of its digits is 82944, while the sum is 35.

The square root of 4431623426 is about 66570.4395809431. The cubic root of 4431623426 is about 1642.5588927003.

The spelling of 4431623426 in words is "four billion, four hundred thirty-one million, six hundred twenty-three thousand, four hundred twenty-six".