57040237 has 8 divisors (see below), whose sum is σ = 57489120. Its totient is φ = 56593680.

The previous prime is 57040201. The next prime is 57040289. The reversal of 57040237 is 73204075.

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

It is a cyclic number.

It is not a de Polignac number, because 57040237 - 2¹⁵ = 57007469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57040297) 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, 128538 + ... + 128980.

It is an arithmetic number, because the mean of its divisors is an integer number (7186140).

Almost surely, 2^57040237 is an apocalyptic number.

It is an amenable number.

57040237 is a deficient number, since it is larger than the sum of its proper divisors (448883).

57040237 is a wasteful number, since it uses less digits than its factorization.

57040237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 57040237 is about 7552.4987255874. The cubic root of 57040237 is about 384.9406486347.

The spelling of 57040237 in words is "fifty-seven million, forty thousand, two hundred thirty-seven".