57443744 has 48 divisors (see below), whose sum is σ = 118379520. Its totient is φ = 27406080.

The previous prime is 57443741. The next prime is 57443753. The reversal of 57443744 is 44734475.

It is a junction number, because it is equal to n+sod(n) for n = 57443698 and 57443707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57443741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78002 + ... + 78734.

It is an arithmetic number, because the mean of its divisors is an integer number (2466240).

Almost surely, 2^57443744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57443744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59189760).

57443744 is an abundant number, since it is smaller than the sum of its proper divisors (60935776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57443744 is a wasteful number, since it uses less digits than its factorization.

57443744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853 (or 845 counting only the distinct ones).

The product of its digits is 188160, while the sum is 38.

The square root of 57443744 is about 7579.1651255267. The cubic root of 57443744 is about 385.8462164928.

The spelling of 57443744 in words is "fifty-seven million, four hundred forty-three thousand, seven hundred forty-four".