40040324220 has 96 divisors (see below), whose sum is σ = 120785398272. Its totient is φ = 9852127488.

The previous prime is 40040324201. The next prime is 40040324221. The reversal of 40040324220 is 2242304004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040324221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2255499 + ... + 2273181.

It is an arithmetic number, because the mean of its divisors is an integer number (1258181232).

Almost surely, 2^40040324220 is an apocalyptic number.

It is an amenable number.

40040324220 is an abundant number, since it is smaller than the sum of its proper divisors (80745074052).

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

40040324220 is a wasteful number, since it uses less digits than its factorization.

40040324220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20611 (or 20609 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 40040324220 its reverse (2242304004), we get a palindrome (42282628224).

The spelling of 40040324220 in words is "forty billion, forty million, three hundred twenty-four thousand, two hundred twenty".