40204025281 has 8 divisors (see below), whose sum is σ = 46139708160. Its totient is φ = 34316405088.

The previous prime is 40204025261. The next prime is 40204025297. The reversal of 40204025281 is 18252040204.

40204025281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40204025281 - 2⁷ = 40204025153 is a prime.

It is a super-2 number, since 2×40204025281² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40204025261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12013876 + ... + 12017221.

It is an arithmetic number, because the mean of its divisors is an integer number (5767463520).

Almost surely, 2^40204025281 is an apocalyptic number.

It is an amenable number.

40204025281 is a deficient number, since it is larger than the sum of its proper divisors (5935682879).

40204025281 is a wasteful number, since it uses less digits than its factorization.

40204025281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24031343.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 40204025281 its reverse (18252040204), we get a palindrome (58456065485).

The spelling of 40204025281 in words is "forty billion, two hundred four million, twenty-five thousand, two hundred eighty-one".