40042220004 has 36 divisors (see below), whose sum is σ = 101226709584. Its totient is φ = 13346236272.

The previous prime is 40042219993. The next prime is 40042220069. The reversal of 40042220004 is 40002224004.

40042220004 is a `hidden beast` number, since 40 + 0 + 422 + 200 + 0 + 4 = 666.

40042220004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 432559 + ... + 516905.

It is an arithmetic number, because the mean of its divisors is an integer number (2811853044).

Almost surely, 2^40042220004 is an apocalyptic number.

It is an amenable number.

40042220004 is an abundant number, since it is smaller than the sum of its proper divisors (61184489580).

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

40042220004 is a wasteful number, since it uses less digits than its factorization.

40042220004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97544 (or 97539 counting only the distinct ones).

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

Adding to 40042220004 its reverse (40002224004), we get a palindrome (80044444008).

The spelling of 40042220004 in words is "forty billion, forty-two million, two hundred twenty thousand, four".