40042202220 has 72 divisors (see below), whose sum is σ = 128606141664. Its totient is φ = 10049806848.

The previous prime is 40042202191. The next prime is 40042202231. The reversal of 40042202220 is 2220224004.

40042202220 is a `hidden beast` number, since 400 + 4 + 220 + 22 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40042202193 and 40042202202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6539784 + ... + 6545903.

It is an arithmetic number, because the mean of its divisors is an integer number (1786196412).

Almost surely, 2^40042202220 is an apocalyptic number.

It is an amenable number.

40042202220 is an abundant number, since it is smaller than the sum of its proper divisors (88563939444).

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

40042202220 is a wasteful number, since it uses less digits than its factorization.

40042202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13085719 (or 13085714 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 40042202220 its reverse (2220224004), we get a palindrome (42262426224).

The spelling of 40042202220 in words is "forty billion, forty-two million, two hundred two thousand, two hundred twenty".