40432120220 has 24 divisors (see below), whose sum is σ = 84915810000. Its totient is φ = 16171256192.

The previous prime is 40432120199. The next prime is 40432120231. The reversal of 40432120220 is 2202123404.

40432120220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 40432120192 and 40432120201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120656 + ... + 308904.

It is an arithmetic number, because the mean of its divisors is an integer number (3538158750).

Almost surely, 2^40432120220 is an apocalyptic number.

It is an amenable number.

40432120220 is an abundant number, since it is smaller than the sum of its proper divisors (44483689780).

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

40432120220 is a wasteful number, since it uses less digits than its factorization.

40432120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198997 (or 198995 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40432120220 its reverse (2202123404), we get a palindrome (42634243624).

The spelling of 40432120220 in words is "forty billion, four hundred thirty-two million, one hundred twenty thousand, two hundred twenty".