17972960440 has 16 divisors (see below), whose sum is σ = 40439161080. Its totient is φ = 7189184160.

The previous prime is 17972960429. The next prime is 17972960441. The reversal of 17972960440 is 4406927971.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17972960441) 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, 224661966 + ... + 224662045.

Almost surely, 2^17972960440 is an apocalyptic number.

17972960440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17972960440 is an abundant number, since it is smaller than the sum of its proper divisors (22466200640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17972960440 is a wasteful number, since it uses less digits than its factorization.

17972960440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449324022 (or 449324018 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 17972960440 in words is "seventeen billion, nine hundred seventy-two million, nine hundred sixty thousand, four hundred forty".