40040220289690 has 16 divisors (see below), whose sum is σ = 75205978979328. Its totient is φ = 15319736458576.

The previous prime is 40040220289651. The next prime is 40040220289691. The reversal of 40040220289690 is 9698202204004.

40040220289690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40040220289690² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 40040220289690.

It is not an unprimeable number, because it can be changed into a prime (40040220289691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87043956922 + ... + 87043957381.

It is an arithmetic number, because the mean of its divisors is an integer number (4700373686208).

Almost surely, 2^{40040220289690} is an apocalyptic number.

40040220289690 is a deficient number, since it is larger than the sum of its proper divisors (35165758689638).

40040220289690 is a wasteful number, since it uses less digits than its factorization.

40040220289690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174087914333.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 40040220289690 in words is "forty trillion, forty billion, two hundred twenty million, two hundred eighty-nine thousand, six hundred ninety".