421395375 has 32 divisors (see below), whose sum is σ = 725400000. Its totient is φ = 216988800.

The previous prime is 421395353. The next prime is 421395383. The reversal of 421395375 is 573593124.

It is a happy number.

It is not a de Polignac number, because 421395375 - 2⁶ = 421395311 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8500 + ... + 30249.

It is an arithmetic number, because the mean of its divisors is an integer number (22668750).

Almost surely, 2^421395375 is an apocalyptic number.

421395375 is a deficient number, since it is larger than the sum of its proper divisors (304004625).

421395375 is a wasteful number, since it uses less digits than its factorization.

421395375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38796 (or 38786 counting only the distinct ones).

The product of its digits is 113400, while the sum is 39.

The square root of 421395375 is about 20527.9169669014. The cubic root of 421395375 is about 749.7156700000.

The spelling of 421395375 in words is "four hundred twenty-one million, three hundred ninety-five thousand, three hundred seventy-five".