428031375 has 16 divisors (see below), whose sum is σ = 712244832. Its totient is φ = 228283200.

The previous prime is 428031367. The next prime is 428031379. The reversal of 428031375 is 573130824.

It is not a de Polignac number, because 428031375 - 2³ = 428031367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428031379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570334 + ... + 571083.

It is an arithmetic number, because the mean of its divisors is an integer number (44515302).

Almost surely, 2^428031375 is an apocalyptic number.

428031375 is a deficient number, since it is larger than the sum of its proper divisors (284213457).

428031375 is a wasteful number, since it uses less digits than its factorization.

428031375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141435 (or 1141425 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 428031375 is about 20688.9191356146. The cubic root of 428031375 is about 753.6306186735.

The spelling of 428031375 in words is "four hundred twenty-eight million, thirty-one thousand, three hundred seventy-five".