40402122432 has 112 divisors (see below), whose sum is σ = 126109366272. Its totient is φ = 11171082240.

The previous prime is 40402122427. The next prime is 40402122487. The reversal of 40402122432 is 23422120404.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 443193 + ... + 526520.

Almost surely, 2^40402122432 is an apocalyptic number.

40402122432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

40402122432 is an abundant number, since it is smaller than the sum of its proper divisors (85707243840).

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

40402122432 is a wasteful number, since it uses less digits than its factorization.

40402122432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969766 (or 969756 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 40402122432 its reverse (23422120404), we get a palindrome (63824242836).

The spelling of 40402122432 in words is "forty billion, four hundred two million, one hundred twenty-two thousand, four hundred thirty-two".