40322520020 has 24 divisors (see below), whose sum is σ = 84681611784. Its totient is φ = 16128185216.

The previous prime is 40322520013. The next prime is 40322520023. The reversal of 40322520020 is 2002522304.

40322520020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 86974276 + 40235545744 = 9326^2 + 200588^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40322519974 and 40322520001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40322520023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488894 + ... + 565386.

It is an arithmetic number, because the mean of its divisors is an integer number (3528400491).

Almost surely, 2^40322520020 is an apocalyptic number.

It is an amenable number.

40322520020 is an abundant number, since it is smaller than the sum of its proper divisors (44359091764).

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

40322520020 is a wasteful number, since it uses less digits than its factorization.

40322520020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102859 (or 102857 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The spelling of 40322520020 in words is "forty billion, three hundred twenty-two million, five hundred twenty thousand, twenty".