40204025280 has 84 divisors (see below), whose sum is σ = 138285105192. Its totient is φ = 10721072640.

The previous prime is 40204025261. The next prime is 40204025297. The reversal of 40204025280 is 8252040204.

It is a happy number.

40204025280 is a `hidden beast` number, since 402 + 0 + 4 + 0 + 252 + 8 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6976986 + ... + 6982745.

Almost surely, 2^40204025280 is an apocalyptic number.

40204025280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40204025280 is an abundant number, since it is smaller than the sum of its proper divisors (98081079912).

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

40204025280 is a wasteful number, since it uses less digits than its factorization.

40204025280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13959754 (or 13959741 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 40204025280 its reverse (8252040204), we get a palindrome (48456065484).

The spelling of 40204025280 in words is "forty billion, two hundred four million, twenty-five thousand, two hundred eighty".