431366428 has 12 divisors (see below), whose sum is σ = 755485920. Its totient is φ = 215513312.

The previous prime is 431366407. The next prime is 431366477. The reversal of 431366428 is 824663134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36676 + ... + 46987.

It is an arithmetic number, because the mean of its divisors is an integer number (62957160).

Almost surely, 2^431366428 is an apocalyptic number.

It is an amenable number.

431366428 is a deficient number, since it is larger than the sum of its proper divisors (324119492).

431366428 is a wasteful number, since it uses less digits than its factorization.

431366428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84956 (or 84954 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The square root of 431366428 is about 20769.3627249369. The cubic root of 431366428 is about 755.5828886145.

The spelling of 431366428 in words is "four hundred thirty-one million, three hundred sixty-six thousand, four hundred twenty-eight".