40433621456 has 20 divisors (see below), whose sum is σ = 78346966500. Its totient is φ = 20215049472.

The previous prime is 40433621453. The next prime is 40433621471. The reversal of 40433621456 is 65412633404.

It can be written as a sum of positive squares in 2 ways, for example, as 28028117056 + 12405504400 = 167416^2 + 111380^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40433621453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90380 + ... + 298388.

It is an arithmetic number, because the mean of its divisors is an integer number (3917348325).

Almost surely, 2^40433621456 is an apocalyptic number.

It is an amenable number.

40433621456 is a deficient number, since it is larger than the sum of its proper divisors (37913345044).

40433621456 is a wasteful number, since it uses less digits than its factorization.

40433621456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220166 (or 220160 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 40433621456 in words is "forty billion, four hundred thirty-three million, six hundred twenty-one thousand, four hundred fifty-six".