40220220032 has 32 divisors (see below), whose sum is σ = 84839531220. Its totient is φ = 18927161344.

The previous prime is 40220220017. The next prime is 40220220059. The reversal of 40220220032 is 23002202204.

40220220032 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 2 ways, for example, as 39639217216 + 581002816 = 199096^2 + 24104^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9239603 + ... + 9243954.

Almost surely, 2^40220220032 is an apocalyptic number.

It is an amenable number.

40220220032 is an abundant number, since it is smaller than the sum of its proper divisors (44619311188).

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

40220220032 is a wasteful number, since it uses less digits than its factorization.

40220220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18483588 (or 18483576 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

Adding to 40220220032 its reverse (23002202204), we get a palindrome (63222422236).

The spelling of 40220220032 in words is "forty billion, two hundred twenty million, two hundred twenty thousand, thirty-two".