40440880004479 has 4 divisors (see below), whose sum is σ = 40442887115800. Its totient is φ = 40438872893160.

The previous prime is 40440880004453. The next prime is 40440880004489. The reversal of 40440880004479 is 97440008804404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40440880004479 is a prime.

It is a super-2 number, since 2×40440880004479² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40440880004489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1003525437 + ... + 1003565734.

It is an arithmetic number, because the mean of its divisors is an integer number (10110721778950).

Almost surely, 2^{40440880004479} is an apocalyptic number.

40440880004479 is a deficient number, since it is larger than the sum of its proper divisors (2007111321).

40440880004479 is a wasteful number, since it uses less digits than its factorization.

40440880004479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007111320.

The product of its (nonzero) digits is 4128768, while the sum is 52.

The spelling of 40440880004479 in words is "forty trillion, four hundred forty billion, eight hundred eighty million, four thousand, four hundred seventy-nine".