40311222320 has 160 divisors (see below), whose sum is σ = 103501946880. Its totient is φ = 14532756480.

The previous prime is 40311222319. The next prime is 40311222359. The reversal of 40311222320 is 2322211304.

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 = 40311222292 and 40311222301.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6674342 + ... + 6680378.

It is an arithmetic number, because the mean of its divisors is an integer number (646887168).

Almost surely, 2^40311222320 is an apocalyptic number.

40311222320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40311222320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51750973440).

40311222320 is an abundant number, since it is smaller than the sum of its proper divisors (63190724560).

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

40311222320 is a wasteful number, since it uses less digits than its factorization.

40311222320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6283 (or 6277 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40311222320 its reverse (2322211304), we get a palindrome (42633433624).

The spelling of 40311222320 in words is "forty billion, three hundred eleven million, two hundred twenty-two thousand, three hundred twenty".