40409840526 has 32 divisors (see below), whose sum is σ = 88397180928. Its totient is φ = 12213426240.

The previous prime is 40409840491. The next prime is 40409840539. The reversal of 40409840526 is 62504890404.

It is a super-2 number, since 2×40409840526² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 774031 + ... + 824586.

It is an arithmetic number, because the mean of its divisors is an integer number (2762411904).

Almost surely, 2^40409840526 is an apocalyptic number.

40409840526 is an abundant number, since it is smaller than the sum of its proper divisors (47987340402).

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

40409840526 is a wasteful number, since it uses less digits than its factorization.

40409840526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599016.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 40409840526 in words is "forty billion, four hundred nine million, eight hundred forty thousand, five hundred twenty-six".