431026628 has 12 divisors (see below), whose sum is σ = 793996560. Its totient is φ = 204170472.

The previous prime is 431026627. The next prime is 431026643. The reversal of 431026628 is 826620134.

It is a junction number, because it is equal to n+sod(n) for n = 431026594 and 431026603.

It is not an unprimeable number, because it can be changed into a prime (431026627) 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, 2835626 + ... + 2835777.

It is an arithmetic number, because the mean of its divisors is an integer number (66166380).

Almost surely, 2^431026628 is an apocalyptic number.

It is an amenable number.

431026628 is a deficient number, since it is larger than the sum of its proper divisors (362969932).

431026628 is a wasteful number, since it uses less digits than its factorization.

431026628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5671426 (or 5671424 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 431026628 is about 20761.1807949355. The cubic root of 431026628 is about 755.3844382221.

The spelling of 431026628 in words is "four hundred thirty-one million, twenty-six thousand, six hundred twenty-eight".