401807318004 has 18 divisors (see below), whose sum is σ = 1015679609490. Its totient is φ = 133935772656.

The previous prime is 401807317973. The next prime is 401807318009. The reversal of 401807318004 is 400813708104.

401807318004 is a `hidden beast` number, since 401 + 8 + 0 + 73 + 180 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 245869205904 + 155938112100 = 495852^2 + 394890^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×401807318004² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 11161314389 = 401807318004 / (4 + 0 + 1 + 8 + 0 + 7 + 3 + 1 + 8 + 0 + 0 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 401807318004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401807318009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5580657159 + ... + 5580657230.

Almost surely, 2^401807318004 is an apocalyptic number.

It is an amenable number.

401807318004 is an abundant number, since it is smaller than the sum of its proper divisors (613872291486).

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

401807318004 is a wasteful number, since it uses less digits than its factorization.

401807318004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11161314399 (or 11161314394 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 401807318004 in words is "four hundred one billion, eight hundred seven million, three hundred eighteen thousand, four".