40044102320 has 20 divisors (see below), whose sum is σ = 93102538080. Its totient is φ = 16017640896.

The previous prime is 40044102317. The next prime is 40044102377. The reversal of 40044102320 is 2320144004.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×40044102320² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40044102292 and 40044102301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250275560 + ... + 250275719.

It is an arithmetic number, because the mean of its divisors is an integer number (4655126904).

Almost surely, 2^40044102320 is an apocalyptic number.

40044102320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40044102320 is an abundant number, since it is smaller than the sum of its proper divisors (53058435760).

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

40044102320 is a wasteful number, since it uses less digits than its factorization.

40044102320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500551292 (or 500551286 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40044102320 its reverse (2320144004), we get a palindrome (42364246324).

The spelling of 40044102320 in words is "forty billion, forty-four million, one hundred two thousand, three hundred twenty".