40401222004 has 24 divisors (see below), whose sum is σ = 83062653408. Its totient is φ = 16951561440.

The previous prime is 40401221983. The next prime is 40401222049. The reversal of 40401222004 is 40022210404.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 35315182 + ... + 35316325.

It is an arithmetic number, because the mean of its divisors is an integer number (3460943892).

Almost surely, 2^40401222004 is an apocalyptic number.

40401222004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40401222004 is an abundant number, since it is smaller than the sum of its proper divisors (42661431404).

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

40401222004 is a wasteful number, since it uses less digits than its factorization.

40401222004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70631535 (or 70631533 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 40401222004 its reverse (40022210404), we get a palindrome (80423432408).

The spelling of 40401222004 in words is "forty billion, four hundred one million, two hundred twenty-two thousand, four".