431626 has 12 divisors (see below), whose sum is σ = 701622. Its totient is φ = 199056.

The previous prime is 431621. The next prime is 431657. The reversal of 431626 is 626134.

431626 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 251001 + 180625 = 501^2 + 425^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 431597 and 431606.

It is not an unprimeable number, because it can be changed into a prime (431621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 301 + ... + 976.

2⁴³¹⁶²⁶ is an apocalyptic number.

431626 is a deficient number, since it is larger than the sum of its proper divisors (269996).

431626 is a wasteful number, since it uses less digits than its factorization.

431626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305 (or 1292 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 431626 is about 656.9824959617. The cubic root of 431626 is about 75.5734413955.

The spelling of 431626 in words is "four hundred thirty-one thousand, six hundred twenty-six".