173997240 has 32 divisors (see below), whose sum is σ = 521992080. Its totient is φ = 46399232.

The previous prime is 173997233. The next prime is 173997253. The reversal of 173997240 is 42799371.

It is a junction number, because it is equal to n+sod(n) for n = 173997192 and 173997201.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 724869 + ... + 725108.

Almost surely, 2^173997240 is an apocalyptic number.

173997240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

173997240 is an abundant number, since it is smaller than the sum of its proper divisors (347994840).

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

173997240 is a wasteful number, since it uses less digits than its factorization.

173997240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449991 (or 1449987 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 173997240 is about 13190.8013403280. The cubic root of 173997240 is about 558.2740653407.

The spelling of 173997240 in words is "one hundred seventy-three million, nine hundred ninety-seven thousand, two hundred forty".