40400320220031 has 16 divisors (see below), whose sum is σ = 53891026942464. Its totient is φ = 26921581128864.

The previous prime is 40400320220017. The next prime is 40400320220033. The reversal of 40400320220031 is 13002202300404.

It is not a de Polignac number, because 40400320220031 - 2²⁹ = 40399783349119 is a prime.

It is a super-2 number, since 2×40400320220031² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40400320220033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186993790 + ... + 187209716.

It is an arithmetic number, because the mean of its divisors is an integer number (3368189183904).

Almost surely, 2^{40400320220031} is an apocalyptic number.

40400320220031 is a deficient number, since it is larger than the sum of its proper divisors (13490706722433).

40400320220031 is a wasteful number, since it uses less digits than its factorization.

40400320220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243350.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 40400320220031 its reverse (13002202300404), we get a palindrome (53402522520435).

The spelling of 40400320220031 in words is "forty trillion, four hundred billion, three hundred twenty million, two hundred twenty thousand, thirty-one".