57040206 has 16 divisors (see below), whose sum is σ = 114223824. Its totient is φ = 18989504.

The previous prime is 57040201. The next prime is 57040289. The reversal of 57040206 is 60204075.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57040201) 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, 405 + ... + 10688.

It is an arithmetic number, because the mean of its divisors is an integer number (7138989).

Almost surely, 2^57040206 is an apocalyptic number.

57040206 is an abundant number, since it is smaller than the sum of its proper divisors (57183618).

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

57040206 is a wasteful number, since it uses less digits than its factorization.

57040206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11955.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 57040206 is about 7552.4966732863. The cubic root of 57040206 is about 384.9405788993.

The spelling of 57040206 in words is "fifty-seven million, forty thousand, two hundred six".