457432438 has 4 divisors (see below), whose sum is σ = 686148660. Its totient is φ = 228716218.

The previous prime is 457432421. The next prime is 457432439. The reversal of 457432438 is 834234754.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 457432438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457432439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114358108 + ... + 114358111.

It is an arithmetic number, because the mean of its divisors is an integer number (171537165).

Almost surely, 2^457432438 is an apocalyptic number.

457432438 is a deficient number, since it is larger than the sum of its proper divisors (228716222).

457432438 is a wasteful number, since it uses less digits than its factorization.

457432438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228716221.

The product of its digits is 322560, while the sum is 40.

The square root of 457432438 is about 21387.6702331039. The cubic root of 457432438 is about 770.5053398381.

The spelling of 457432438 in words is "four hundred fifty-seven million, four hundred thirty-two thousand, four hundred thirty-eight".