457308242 has 8 divisors (see below), whose sum is σ = 686870796. Its totient is φ = 228351312.

The previous prime is 457308227. The next prime is 457308251. The reversal of 457308242 is 242803754.

It can be written as a sum of positive squares in 2 ways, for example, as 427703761 + 29604481 = 20681^2 + 5441^2 .

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

It is a super-2 number, since 2×457308242² = 418261656402261128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149513 + ... + 152540.

Almost surely, 2^457308242 is an apocalyptic number.

457308242 is a deficient number, since it is larger than the sum of its proper divisors (229562554).

457308242 is a wasteful number, since it uses less digits than its factorization.

457308242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302812.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 457308242 is about 21384.7665874566. The cubic root of 457308242 is about 770.4356010563.

The spelling of 457308242 in words is "four hundred fifty-seven million, three hundred eight thousand, two hundred forty-two".