40322344132 has 48 divisors (see below), whose sum is σ = 85407049728. Its totient is φ = 16260940800.

The previous prime is 40322344129. The next prime is 40322344133. The reversal of 40322344132 is 23144322304.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40322344132.

It is not an unprimeable number, because it can be changed into a prime (40322344133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4351248 + ... + 4360504.

It is an arithmetic number, because the mean of its divisors is an integer number (1779313536).

Almost surely, 2^40322344132 is an apocalyptic number.

It is an amenable number.

40322344132 is an abundant number, since it is smaller than the sum of its proper divisors (45084705596).

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

40322344132 is a wasteful number, since it uses less digits than its factorization.

40322344132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18436 (or 18434 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 40322344132 its reverse (23144322304), we get a palindrome (63466666436).

The spelling of 40322344132 in words is "forty billion, three hundred twenty-two million, three hundred forty-four thousand, one hundred thirty-two".