40231144422 has 64 divisors (see below), whose sum is σ = 102407500800. Its totient is φ = 11468381760.

The previous prime is 40231144417. The next prime is 40231144477. The reversal of 40231144422 is 22444113204.

40231144422 is a `hidden beast` number, since 4 + 0 + 231 + 1 + 4 + 4 + 422 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44722 + ... + 287162.

It is an arithmetic number, because the mean of its divisors is an integer number (1600117200).

Almost surely, 2^40231144422 is an apocalyptic number.

40231144422 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 40231144422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51203750400).

40231144422 is an abundant number, since it is smaller than the sum of its proper divisors (62176356378).

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

40231144422 is a wasteful number, since it uses less digits than its factorization.

40231144422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242898 (or 242892 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 40231144422 its reverse (22444113204), we get a palindrome (62675257626).

The spelling of 40231144422 in words is "forty billion, two hundred thirty-one million, one hundred forty-four thousand, four hundred twenty-two".