40235520904 has 16 divisors (see below), whose sum is σ = 75465071820. Its totient is φ = 20111501760.

The previous prime is 40235520901. The next prime is 40235520977. The reversal of 40235520904 is 40902553204.

It can be written as a sum of positive squares in 2 ways, for example, as 37531312900 + 2704208004 = 193730^2 + 52002^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40235520904.

It is not an unprimeable number, because it can be changed into a prime (40235520901) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 754959 + ... + 806494.

Almost surely, 2^40235520904 is an apocalyptic number.

It is an amenable number.

40235520904 is a deficient number, since it is larger than the sum of its proper divisors (35229550916).

40235520904 is a wasteful number, since it uses less digits than its factorization.

40235520904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564680 (or 1564676 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 40235520904 in words is "forty billion, two hundred thirty-five million, five hundred twenty thousand, nine hundred four".