40002132120 has 64 divisors (see below), whose sum is σ = 120042846720. Its totient is φ = 10663995264.

The previous prime is 40002132113. The next prime is 40002132133. The reversal of 40002132120 is 2123120004.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 40002132120.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 359919 + ... + 457761.

It is an arithmetic number, because the mean of its divisors is an integer number (1875669480).

Almost surely, 2^40002132120 is an apocalyptic number.

40002132120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40002132120 is an abundant number, since it is smaller than the sum of its proper divisors (80040714600).

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

40002132120 is a wasteful number, since it uses less digits than its factorization.

40002132120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101264 (or 101260 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 40002132120 its reverse (2123120004), we get a palindrome (42125252124).

The spelling of 40002132120 in words is "forty billion, two million, one hundred thirty-two thousand, one hundred twenty".