431388652 has 6 divisors (see below), whose sum is σ = 754930148. Its totient is φ = 215694324.

The previous prime is 431388641. The next prime is 431388689. The reversal of 431388652 is 256883134.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53923578 + ... + 53923585.

Almost surely, 2^431388652 is an apocalyptic number.

It is an amenable number.

431388652 is a deficient number, since it is larger than the sum of its proper divisors (323541496).

431388652 is a wasteful number, since it uses less digits than its factorization.

431388652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107847167 (or 107847165 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 431388652 is about 20769.8977368691. The cubic root of 431388652 is about 755.5958642695.

The spelling of 431388652 in words is "four hundred thirty-one million, three hundred eighty-eight thousand, six hundred fifty-two".