457285442 has 8 divisors (see below), whose sum is σ = 704466876. Its totient is φ = 222463152.

The previous prime is 457285441. The next prime is 457285469. The reversal of 457285442 is 244582754.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 417834481 + 39450961 = 20441^2 + 6281^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 457285442.

It is not an unprimeable number, because it can be changed into a prime (457285441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3089693 + ... + 3089840.

Almost surely, 2^457285442 is an apocalyptic number.

457285442 is a deficient number, since it is larger than the sum of its proper divisors (247181434).

457285442 is a wasteful number, since it uses less digits than its factorization.

457285442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6179572.

The product of its digits is 358400, while the sum is 41.

The square root of 457285442 is about 21384.2334910560. The cubic root of 457285442 is about 770.4227969838.

The spelling of 457285442 in words is "four hundred fifty-seven million, two hundred eighty-five thousand, four hundred forty-two".