40404042004 has 12 divisors (see below), whose sum is σ = 70721447328. Its totient is φ = 20197914200.

The previous prime is 40404041981. The next prime is 40404042023. The reversal of 40404042004 is 40024040404.

It is a super-2 number, since 2×40404042004² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1004512 + ... + 1043959.

It is an arithmetic number, because the mean of its divisors is an integer number (5893453944).

Almost surely, 2^40404042004 is an apocalyptic number.

It is an amenable number.

40404042004 is a deficient number, since it is larger than the sum of its proper divisors (30317405324).

40404042004 is a wasteful number, since it uses less digits than its factorization.

40404042004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053406 (or 2053404 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 40404042004 its reverse (40024040404), we get a palindrome (80428082408).

The spelling of 40404042004 in words is "forty billion, four hundred four million, forty-two thousand, four".