57449142 has 16 divisors (see below), whose sum is σ = 127664880. Its totient is φ = 19149696.

The previous prime is 57449113. The next prime is 57449143. The reversal of 57449142 is 24194475.

It is a happy number.

57449142 is a `hidden beast` number, since 574 + 49 + 1 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 57449097 and 57449106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57449143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531883 + ... + 531990.

It is an arithmetic number, because the mean of its divisors is an integer number (7979055).

Almost surely, 2^57449142 is an apocalyptic number.

57449142 is an abundant number, since it is smaller than the sum of its proper divisors (70215738).

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

57449142 is a wasteful number, since it uses less digits than its factorization.

57449142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063884 (or 1063878 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 57449142 is about 7579.5212249851. The cubic root of 57449142 is about 385.8583021293.

The spelling of 57449142 in words is "fifty-seven million, four hundred forty-nine thousand, one hundred forty-two".