40431312222 has 64 divisors (see below), whose sum is σ = 93889926144. Its totient is φ = 11368742400.

The previous prime is 40431312209. The next prime is 40431312227. The reversal of 40431312222 is 22221313404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40431312192 and 40431312201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40431312227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 679878 + ... + 736950.

It is an arithmetic number, because the mean of its divisors is an integer number (1467030096).

Almost surely, 2^40431312222 is an apocalyptic number.

40431312222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40431312222 is an abundant number, since it is smaller than the sum of its proper divisors (53458613922).

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

40431312222 is a wasteful number, since it uses less digits than its factorization.

40431312222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57353.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 40431312222 its reverse (22221313404), we get a palindrome (62652625626).

The spelling of 40431312222 in words is "forty billion, four hundred thirty-one million, three hundred twelve thousand, two hundred twenty-two".