401870660 has 24 divisors (see below), whose sum is σ = 844603200. Its totient is φ = 160619744.

The previous prime is 401870641. The next prime is 401870669. The reversal of 401870660 is 66078104.

It is not an unprimeable number, because it can be changed into a prime (401870669) 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, 19991 + ... + 34689.

It is an arithmetic number, because the mean of its divisors is an integer number (35191800).

Almost surely, 2^401870660 is an apocalyptic number.

It is an amenable number.

401870660 is an abundant number, since it is smaller than the sum of its proper divisors (442732540).

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

401870660 is a wasteful number, since it uses less digits than its factorization.

401870660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16075 (or 16073 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 401870660 is about 20046.7119498435. The cubic root of 401870660 is about 737.9531089005.

The spelling of 401870660 in words is "four hundred one million, eight hundred seventy thousand, six hundred sixty".