40042042044 has 48 divisors (see below), whose sum is σ = 94354799616. Its totient is φ = 13215571200.

The previous prime is 40042042039. The next prime is 40042042049. The reversal of 40042042044 is 44024024004.

It is an interprime number because it is at equal distance from previous prime (40042042039) and next prime (40042042049).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40042042049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2767509 + ... + 2781939.

It is an arithmetic number, because the mean of its divisors is an integer number (1965724992).

Almost surely, 2^40042042044 is an apocalyptic number.

It is an amenable number.

40042042044 is an abundant number, since it is smaller than the sum of its proper divisors (54312757572).

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

40042042044 is a wasteful number, since it uses less digits than its factorization.

40042042044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16706 (or 16704 counting only the distinct ones).

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

Adding to 40042042044 its reverse (44024024004), we get a palindrome (84066066048).

The spelling of 40042042044 in words is "forty billion, forty-two million, forty-two thousand, forty-four", and thus it is an eban number.