40040240424044 has 36 divisors (see below), whose sum is σ = 81621690940944. Its totient is φ = 17136692195616.

The previous prime is 40040240424043. The next prime is 40040240424077. The reversal of 40040240424044 is 44042404204004.

It is a self number, because there is not a number n which added to its sum of digits gives 40040240424044.

It is not an unprimeable number, because it can be changed into a prime (40040240424043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139206224 + ... + 139493559.

It is an arithmetic number, because the mean of its divisors is an integer number (2267269192804).

Almost surely, 2^{40040240424044} is an apocalyptic number.

It is an amenable number.

40040240424044 is an abundant number, since it is smaller than the sum of its proper divisors (41581450516900).

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

40040240424044 is a wasteful number, since it uses less digits than its factorization.

40040240424044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278700534 (or 278700525 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 40040240424044 its reverse (44042404204004), we get a palindrome (84082644628048).

The spelling of 40040240424044 in words is "forty trillion, forty billion, two hundred forty million, four hundred twenty-four thousand, forty-four".