431378252 has 12 divisors (see below), whose sum is σ = 756311136. Its totient is φ = 215289360.

The previous prime is 431378239. The next prime is 431378263. The reversal of 431378252 is 252873134.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97508 + ... + 101835.

It is an arithmetic number, because the mean of its divisors is an integer number (63025928).

Almost surely, 2^431378252 is an apocalyptic number.

It is an amenable number.

431378252 is a deficient number, since it is larger than the sum of its proper divisors (324932884).

431378252 is a wasteful number, since it uses less digits than its factorization.

431378252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199888 (or 199886 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 431378252 is about 20769.6473730297. The cubic root of 431378252 is about 755.5897922042.

The spelling of 431378252 in words is "four hundred thirty-one million, three hundred seventy-eight thousand, two hundred fifty-two".