471640386 has 48 divisors (see below), whose sum is σ = 1132704000. Its totient is φ = 130404960.

The previous prime is 471640313. The next prime is 471640387. The reversal of 471640386 is 683046174.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (471640387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16761 + ... + 34988.

It is an arithmetic number, because the mean of its divisors is an integer number (23598000).

Almost surely, 2^471640386 is an apocalyptic number.

471640386 is an abundant number, since it is smaller than the sum of its proper divisors (661063614).

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

471640386 is a wasteful number, since it uses less digits than its factorization.

471640386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51799 (or 51792 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 471640386 is about 21717.2831173699. The cubic root of 471640386 is about 778.4014962102.

The spelling of 471640386 in words is "four hundred seventy-one million, six hundred forty thousand, three hundred eighty-six".