40001032140 has 24 divisors (see below), whose sum is σ = 112002890160. Its totient is φ = 10666941888.

The previous prime is 40001032133. The next prime is 40001032163. The reversal of 40001032140 is 4123010004.

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

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 7 ways as a sum of consecutive naturals, for example, 333341875 + ... + 333341994.

It is an arithmetic number, because the mean of its divisors is an integer number (4666787090).

Almost surely, 2^40001032140 is an apocalyptic number.

It is an amenable number.

40001032140 is an abundant number, since it is smaller than the sum of its proper divisors (72001858020).

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

40001032140 is a wasteful number, since it uses less digits than its factorization.

40001032140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666683881 (or 666683879 counting only the distinct ones).

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

Adding to 40001032140 its reverse (4123010004), we get a palindrome (44124042144).

The spelling of 40001032140 in words is "forty billion, one million, thirty-two thousand, one hundred forty".