40440503221 has 8 divisors (see below), whose sum is σ = 40672104480. Its totient is φ = 40208965392.

The previous prime is 40440503183. The next prime is 40440503251. The reversal of 40440503221 is 12230504404.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40440503221 - 2⁷ = 40440503093 is a prime.

It is a super-2 number, since 2×40440503221² (a number of 22 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 (40440503251) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1959271 + ... + 1979803.

It is an arithmetic number, because the mean of its divisors is an integer number (5084013060).

Almost surely, 2^40440503221 is an apocalyptic number.

It is an amenable number.

40440503221 is a deficient number, since it is larger than the sum of its proper divisors (231601259).

40440503221 is a wasteful number, since it uses less digits than its factorization.

40440503221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31715.

The product of its (nonzero) digits is 3840, while the sum is 25.

The spelling of 40440503221 in words is "forty billion, four hundred forty million, five hundred three thousand, two hundred twenty-one".