17400660040 has 48 divisors (see below), whose sum is σ = 40548168180. Its totient is φ = 6720241920.

The previous prime is 17400659993. The next prime is 17400660091. The reversal of 17400660040 is 4006600471.

It can be written as a sum of positive squares in 6 ways, for example, as 5118257764 + 12282402276 = 71542^2 + 110826^2 .

It is a junction number, because it is equal to n+sod(n) for n = 17400659990 and 17400660008.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224991 + ... + 292270.

Almost surely, 2^17400660040 is an apocalyptic number.

17400660040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17400660040 is an abundant number, since it is smaller than the sum of its proper divisors (23147508140).

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

17400660040 is a wasteful number, since it uses less digits than its factorization.

17400660040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517330 (or 517297 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The spelling of 17400660040 in words is "seventeen billion, four hundred million, six hundred sixty thousand, forty".