40221340326 has 24 divisors (see below), whose sum is σ = 87559260984. Its totient is φ = 13343571360.

The previous prime is 40221340303. The next prime is 40221340337. The reversal of 40221340326 is 62304312204.

40221340326 is a `hidden beast` number, since 40 + 2 + 213 + 403 + 2 + 6 = 666.

40221340326 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40221340326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5291271 + ... + 5298866.

It is an arithmetic number, because the mean of its divisors is an integer number (3648302541).

Almost surely, 2^40221340326 is an apocalyptic number.

40221340326 is an abundant number, since it is smaller than the sum of its proper divisors (47337920658).

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

40221340326 is a wasteful number, since it uses less digits than its factorization.

40221340326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10590356 (or 10590353 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The spelling of 40221340326 in words is "forty billion, two hundred twenty-one million, three hundred forty thousand, three hundred twenty-six".