40222244440 has 64 divisors (see below), whose sum is σ = 103445971200. Its totient is φ = 13788171648.

The previous prime is 40222244423. The next prime is 40222244471. The reversal of 40222244440 is 4444222204.

It is a super-2 number, since 2×40222244440² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 40222244399 and 40222244408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3036151 + ... + 3049369.

It is an arithmetic number, because the mean of its divisors is an integer number (1616343300).

Almost surely, 2^40222244440 is an apocalyptic number.

40222244440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40222244440 is an abundant number, since it is smaller than the sum of its proper divisors (63223726760).

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

40222244440 is a wasteful number, since it uses less digits than its factorization.

40222244440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24104 (or 24100 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 40222244440 its reverse (4444222204), we get a palindrome (44666466644).

The spelling of 40222244440 in words is "forty billion, two hundred twenty-two million, two hundred forty-four thousand, four hundred forty".