40421441440 has 24 divisors (see below), whose sum is σ = 95495655780. Its totient is φ = 16168576512.

The previous prime is 40421441419. The next prime is 40421441479. The reversal of 40421441440 is 4414412404.

40421441440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39551663376 + 869778064 = 198876^2 + 29492^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40421441399 and 40421441408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126316845 + ... + 126317164.

Almost surely, 2^40421441440 is an apocalyptic number.

40421441440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40421441440 is an abundant number, since it is smaller than the sum of its proper divisors (55074214340).

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

40421441440 is a wasteful number, since it uses less digits than its factorization.

40421441440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252634024 (or 252634016 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 40421441440 its reverse (4414412404), we get a palindrome (44835853844).

The spelling of 40421441440 in words is "forty billion, four hundred twenty-one million, four hundred forty-one thousand, four hundred forty".