404000840007 has 24 divisors (see below), whose sum is σ = 587748320640. Its totient is φ = 267404109840.

The previous prime is 404000840003. The next prime is 404000840063. The reversal of 404000840007 is 700048000404.

It is not a de Polignac number, because 404000840007 - 2² = 404000840003 is a prime.

It is a super-2 number, since 2×404000840007² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404000840003) 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, 817828 + ... + 1215254.

It is an arithmetic number, because the mean of its divisors is an integer number (24489513360).

Almost surely, 2^404000840007 is an apocalyptic number.

404000840007 is a deficient number, since it is larger than the sum of its proper divisors (183747480633).

404000840007 is a wasteful number, since it uses less digits than its factorization.

404000840007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398243 (or 398240 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The spelling of 404000840007 in words is "four hundred four billion, eight hundred forty thousand, seven".