40042440204 has 72 divisors (see below), whose sum is σ = 102174548112. Its totient is φ = 12198700800.

The previous prime is 40042440199. The next prime is 40042440209. The reversal of 40042440204 is 40204424004.

It is an interprime number because it is at equal distance from previous prime (40042440199) and next prime (40042440209).

It is not an unprimeable number, because it can be changed into a prime (40042440209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107082 + ... + 302574.

It is an arithmetic number, because the mean of its divisors is an integer number (1419090946).

Almost surely, 2^40042440204 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 40042440204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51087274056).

40042440204 is an abundant number, since it is smaller than the sum of its proper divisors (62132107908).

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

40042440204 is a wasteful number, since it uses less digits than its factorization.

40042440204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195627 (or 195612 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 40042440204 its reverse (40204424004), we get a palindrome (80246864208).

The spelling of 40042440204 in words is "forty billion, forty-two million, four hundred forty thousand, two hundred four".