57820466 has 16 divisors (see below), whose sum is σ = 96817248. Its totient is φ = 25670400.

The previous prime is 57820463. The next prime is 57820471. The reversal of 57820466 is 66402875.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (57820463) 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, 29615 + ... + 31506.

It is an arithmetic number, because the mean of its divisors is an integer number (6051078).

Almost surely, 2^57820466 is an apocalyptic number.

57820466 is a deficient number, since it is larger than the sum of its proper divisors (38996782).

57820466 is a wasteful number, since it uses less digits than its factorization.

57820466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61177.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 57820466 is about 7603.9769857621. The cubic root of 57820466 is about 386.6878524196.

The spelling of 57820466 in words is "fifty-seven million, eight hundred twenty thousand, four hundred sixty-six".