40220205632 has 84 divisors (see below), whose sum is σ = 86028215040. Its totient is φ = 18645818112.

The previous prime is 40220205629. The next prime is 40220205637. The reversal of 40220205632 is 23650202204.

It is not an unprimeable number, because it can be changed into a prime (40220205637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1067369 + ... + 1104407.

Almost surely, 2^40220205632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40220205632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43014107520).

40220205632 is an abundant number, since it is smaller than the sum of its proper divisors (45808009408).

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

40220205632 is a wasteful number, since it uses less digits than its factorization.

40220205632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37136 (or 37107 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 40220205632 its reverse (23650202204), we get a palindrome (63870407836).

The spelling of 40220205632 in words is "forty billion, two hundred twenty million, two hundred five thousand, six hundred thirty-two".