457302449 has 4 divisors (see below), whose sum is σ = 457451364. Its totient is φ = 457153536.

The previous prime is 457302427. The next prime is 457302467. The reversal of 457302449 is 944203754.

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

It can be written as a sum of positive squares in 2 ways, for example, as 282004849 + 175297600 = 16793^2 + 13240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-457302449 is a prime.

It is a super-2 number, since 2×457302449² = 418251059722795202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (457302749) 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, 69752 + ... + 76025.

It is an arithmetic number, because the mean of its divisors is an integer number (114362841).

Almost surely, 2^457302449 is an apocalyptic number.

It is an amenable number.

457302449 is a deficient number, since it is larger than the sum of its proper divisors (148915).

457302449 is a wasteful number, since it uses less digits than its factorization.

457302449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148914.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 457302449 is about 21384.6311401436. The cubic root of 457302449 is about 770.4323478514.

The spelling of 457302449 in words is "four hundred fifty-seven million, three hundred two thousand, four hundred forty-nine".