40224404220 has 768 divisors, whose sum is σ = 162266775552. Its totient is φ = 7171338240.

The previous prime is 40224404203. The next prime is 40224404249. The reversal of 40224404220 is 2240442204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 51110667 + ... + 51111453.

It is an arithmetic number, because the mean of its divisors is an integer number (211284864).

Almost surely, 2^40224404220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40224404220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81133387776).

40224404220 is an abundant number, since it is smaller than the sum of its proper divisors (122042371332).

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

40224404220 is a wasteful number, since it uses less digits than its factorization.

40224404220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 40224404220 its reverse (2240442204), we get a palindrome (42464846424).

It can be divided in two parts, 40224 and 404220, that added together give a palindrome (444444).

The spelling of 40224404220 in words is "forty billion, two hundred twenty-four million, four hundred four thousand, two hundred twenty".