40652801449 has 24 divisors (see below), whose sum is σ = 44414411832. Its totient is φ = 37190799360.

The previous prime is 40652801389. The next prime is 40652801467. The reversal of 40652801449 is 94410825604.

It can be written as a sum of positive squares in 12 ways, for example, as 20734560025 + 19918241424 = 143995^2 + 141132^2 .

It is not a de Polignac number, because 40652801449 - 2²³ = 40644412841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40652811449) 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 23 ways as a sum of consecutive naturals, for example, 20396797 + ... + 20398789.

It is an arithmetic number, because the mean of its divisors is an integer number (1850600493).

Almost surely, 2^40652801449 is an apocalyptic number.

It is an amenable number.

40652801449 is a deficient number, since it is larger than the sum of its proper divisors (3761610383).

40652801449 is a wasteful number, since it uses less digits than its factorization.

40652801449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3037 (or 3024 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 40652801449 in words is "forty billion, six hundred fifty-two million, eight hundred one thousand, four hundred forty-nine".