431203928 has 8 divisors (see below), whose sum is σ = 808507380. Its totient is φ = 215601960.

The previous prime is 431203909. The next prime is 431203951. The reversal of 431203928 is 829302134.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 431203894 and 431203903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26950238 + ... + 26950253.

Almost surely, 2^431203928 is an apocalyptic number.

It is an amenable number.

431203928 is a deficient number, since it is larger than the sum of its proper divisors (377303452).

431203928 is a wasteful number, since it uses less digits than its factorization.

431203928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53900497 (or 53900493 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 431203928 is about 20765.4503442617. The cubic root of 431203928 is about 755.4879981823.

The spelling of 431203928 in words is "four hundred thirty-one million, two hundred three thousand, nine hundred twenty-eight".