40402665100 has 72 divisors (see below), whose sum is σ = 100317016800. Its totient is φ = 13835973120.

The previous prime is 40402665073. The next prime is 40402665119. The reversal of 40402665100 is 156620404.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 566226 + ... + 633574.

It is an arithmetic number, because the mean of its divisors is an integer number (1393291900).

Almost surely, 2^40402665100 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 40402665100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50158508400).

40402665100 is an abundant number, since it is smaller than the sum of its proper divisors (59914351700).

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

40402665100 is a wasteful number, since it uses less digits than its factorization.

40402665100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68227 (or 68220 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 40402665100 in words is "forty billion, four hundred two million, six hundred sixty-five thousand, one hundred".