40423220144 has 40 divisors (see below), whose sum is σ = 79703470080. Its totient is φ = 19857676608.

The previous prime is 40423220059. The next prime is 40423220161. The reversal of 40423220144 is 44102232404.

It is a happy 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, 112727 + ... + 305865.

It is an arithmetic number, because the mean of its divisors is an integer number (1992586752).

Almost surely, 2^40423220144 is an apocalyptic number.

It is an amenable number.

40423220144 is a deficient number, since it is larger than the sum of its proper divisors (39280249936).

40423220144 is a wasteful number, since it uses less digits than its factorization.

40423220144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193377 (or 193371 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 40423220144 its reverse (44102232404), we get a palindrome (84525452548).

The spelling of 40423220144 in words is "forty billion, four hundred twenty-three million, two hundred twenty thousand, one hundred forty-four".