57243469 has 4 divisors (see below), whose sum is σ = 57456540. Its totient is φ = 57030400.

The previous prime is 57243457. The next prime is 57243493. The reversal of 57243469 is 96434275.

It is a happy number.

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 26574025 + 30669444 = 5155^2 + 5538^2 .

It is a cyclic number.

It is not a de Polignac number, because 57243469 - 2¹⁵ = 57210701 is a prime.

It is a super-2 number, since 2×57243469² = 6553629486307922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57243269) 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, 106132 + ... + 106669.

It is an arithmetic number, because the mean of its divisors is an integer number (14364135).

Almost surely, 2^57243469 is an apocalyptic number.

It is an amenable number.

57243469 is a deficient number, since it is larger than the sum of its proper divisors (213071).

57243469 is a wasteful number, since it uses less digits than its factorization.

57243469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213070.

The product of its digits is 181440, while the sum is 40.

The square root of 57243469 is about 7565.9413822736. The cubic root of 57243469 is about 385.3972825989.

The spelling of 57243469 in words is "fifty-seven million, two hundred forty-three thousand, four hundred sixty-nine".