401021170 has 48 divisors (see below), whose sum is σ = 809621568. Its totient is φ = 141831360.

The previous prime is 401021149. The next prime is 401021209. The reversal of 401021170 is 71120104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149259 + ... + 151921.

It is an arithmetic number, because the mean of its divisors is an integer number (16867116).

Almost surely, 2^401021170 is an apocalyptic number.

401021170 is an abundant number, since it is smaller than the sum of its proper divisors (408600398).

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

401021170 is a wasteful number, since it uses less digits than its factorization.

401021170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755 (or 2718 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 401021170 is about 20025.5129771999. The cubic root of 401021170 is about 737.4327706599.

Adding to 401021170 its reverse (71120104), we get a palindrome (472141274).

The spelling of 401021170 in words is "four hundred one million, twenty-one thousand, one hundred seventy".