57144028 has 6 divisors (see below), whose sum is σ = 100002056. Its totient is φ = 28572012.

The previous prime is 57144011. The next prime is 57144047. The reversal of 57144028 is 82044175.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7143000 + ... + 7143007.

Almost surely, 2^57144028 is an apocalyptic number.

It is an amenable number.

57144028 is a deficient number, since it is larger than the sum of its proper divisors (42858028).

57144028 is a wasteful number, since it uses less digits than its factorization.

57144028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14286011 (or 14286009 counting only the distinct ones).

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

The square root of 57144028 is about 7559.3669047084. The cubic root of 57144028 is about 385.1739878132.

The spelling of 57144028 in words is "fifty-seven million, one hundred forty-four thousand, twenty-eight".