40400022220 has 96 divisors (see below), whose sum is σ = 86766422400. Its totient is φ = 15798681600.

The previous prime is 40400022217. The next prime is 40400022233. The reversal of 40400022220 is 2222000404.

It is a junction number, because it is equal to n+sod(n) for n = 40400022194 and 40400022203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67445481 + ... + 67446079.

It is an arithmetic number, because the mean of its divisors is an integer number (903816900).

Almost surely, 2^40400022220 is an apocalyptic number.

It is an amenable number.

40400022220 is an abundant number, since it is smaller than the sum of its proper divisors (46366400180).

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

40400022220 is a wasteful number, since it uses less digits than its factorization.

40400022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 40400022220 its reverse (2222000404), we get a palindrome (42622022624).

The spelling of 40400022220 in words is "forty billion, four hundred million, twenty-two thousand, two hundred twenty".