57420841 has 4 divisors (see below), whose sum is σ = 59400900. Its totient is φ = 55440784.

The previous prime is 57420833. The next prime is 57420859. The reversal of 57420841 is 14802475.

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 14137600 + 43283241 = 3760^2 + 6579^2 .

It is a cyclic number.

It is not a de Polignac number, because 57420841 - 2³ = 57420833 is a prime.

It is a super-2 number, since 2×57420841² = 6594305962294562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57420821) 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, 989986 + ... + 990043.

It is an arithmetic number, because the mean of its divisors is an integer number (14850225).

Almost surely, 2^57420841 is an apocalyptic number.

It is an amenable number.

57420841 is a deficient number, since it is larger than the sum of its proper divisors (1980059).

57420841 is a wasteful number, since it uses less digits than its factorization.

57420841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980058.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 57420841 is about 7577.6540565006. The cubic root of 57420841 is about 385.7949303126.

The spelling of 57420841 in words is "fifty-seven million, four hundred twenty thousand, eight hundred forty-one".