457642529 has 4 divisors (see below), whose sum is σ = 470011284. Its totient is φ = 445273776.

The previous prime is 457642519. The next prime is 457642543. The reversal of 457642529 is 925246754.

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 297493504 + 160149025 = 17248^2 + 12655^2 .

It is a cyclic number.

It is not a de Polignac number, because 457642529 - 2⁴ = 457642513 is a prime.

It is a super-4 number, since 4×457642529⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 457642529.

It is not an unprimeable number, because it can be changed into a prime (457642519) 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, 6184322 + ... + 6184395.

It is an arithmetic number, because the mean of its divisors is an integer number (117502821).

Almost surely, 2^457642529 is an apocalyptic number.

It is an amenable number.

457642529 is a deficient number, since it is larger than the sum of its proper divisors (12368755).

457642529 is a wasteful number, since it uses less digits than its factorization.

457642529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12368754.

The product of its digits is 604800, while the sum is 44.

The square root of 457642529 is about 21392.5811673113. The cubic root of 457642529 is about 770.6232818174.

The spelling of 457642529 in words is "four hundred fifty-seven million, six hundred forty-two thousand, five hundred twenty-nine".