401385770874 has 32 divisors (see below), whose sum is σ = 973056415680. Its totient is φ = 121632051600.

The previous prime is 401385770861. The next prime is 401385770899. The reversal of 401385770874 is 478077583104.

It is a super-2 number, since 2×401385770874² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 401385770874.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337866217 + ... + 337867404.

It is an arithmetic number, because the mean of its divisors is an integer number (30408012990).

Almost surely, 2^401385770874 is an apocalyptic number.

401385770874 is an abundant number, since it is smaller than the sum of its proper divisors (571670644806).

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

401385770874 is a wasteful number, since it uses less digits than its factorization.

401385770874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675733643 (or 675733637 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 54.

The spelling of 401385770874 in words is "four hundred one billion, three hundred eighty-five million, seven hundred seventy thousand, eight hundred seventy-four".