40320720922 has 8 divisors (see below), whose sum is σ = 60482056500. Its totient is φ = 20160035424.

The previous prime is 40320720919. The next prime is 40320720943. The reversal of 40320720922 is 22902702304.

It can be written as a sum of positive squares in 2 ways, for example, as 37068185961 + 3252534961 = 192531^2 + 57031^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46104 + ... + 287692.

Almost surely, 2^40320720922 is an apocalyptic number.

40320720922 is a deficient number, since it is larger than the sum of its proper divisors (20161335578).

40320720922 is a wasteful number, since it uses less digits than its factorization.

40320720922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325040.

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 40320720922 in words is "forty billion, three hundred twenty million, seven hundred twenty thousand, nine hundred twenty-two".