57381849 has 36 divisors (see below), whose sum is σ = 99343296. Its totient is φ = 31206384.

The previous prime is 57381847. The next prime is 57381893. The reversal of 57381849 is 94818375.

It is not a de Polignac number, because 57381849 - 2¹ = 57381847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57381847) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 288252 + ... + 288450.

It is an arithmetic number, because the mean of its divisors is an integer number (2759536).

Almost surely, 2^57381849 is an apocalyptic number.

It is an amenable number.

57381849 is a deficient number, since it is larger than the sum of its proper divisors (41961447).

57381849 is a wasteful number, since it uses less digits than its factorization.

57381849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 232 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 57381849 is about 7575.0807916484. The cubic root of 57381849 is about 385.7075850100.

The spelling of 57381849 in words is "fifty-seven million, three hundred eighty-one thousand, eight hundred forty-nine".