40401122432 has 64 divisors (see below), whose sum is σ = 87965771040. Its totient is φ = 18330224640.

The previous prime is 40401122431. The next prime is 40401122453. The reversal of 40401122432 is 23422110404.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 40401122398 and 40401122407.

It is not an unprimeable number, because it can be changed into a prime (40401122431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 743948 + ... + 796404.

Almost surely, 2^40401122432 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 40401122432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43982885520).

40401122432 is an abundant number, since it is smaller than the sum of its proper divisors (47564648608).

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

40401122432 is a wasteful number, since it uses less digits than its factorization.

40401122432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53029 (or 53017 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 40401122432 its reverse (23422110404), we get a palindrome (63823232836).

The spelling of 40401122432 in words is "forty billion, four hundred one million, one hundred twenty-two thousand, four hundred thirty-two".