57744842 has 8 divisors (see below), whose sum is σ = 86866500. Its totient is φ = 28789344.

The previous prime is 57744833. The next prime is 57744853. The reversal of 57744842 is 24844775.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 57441241 + 303601 = 7579^2 + 551^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 57744842.

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, 40667 + ... + 42062.

Almost surely, 2^57744842 is an apocalyptic number.

57744842 is a deficient number, since it is larger than the sum of its proper divisors (29121658).

57744842 is a wasteful number, since it uses less digits than its factorization.

57744842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83080.

The product of its digits is 250880, while the sum is 41.

The square root of 57744842 is about 7599.0026977229. The cubic root of 57744842 is about 386.5191944889.

Subtracting from 57744842 its sum of digits (41), we obtain a square (57744801 = 7599²).

The spelling of 57744842 in words is "fifty-seven million, seven hundred forty-four thousand, eight hundred forty-two".