17980450 has 24 divisors (see below), whose sum is σ = 34225488. Its totient is φ = 7024080.

The previous prime is 17980433. The next prime is 17980451. The reversal of 17980450 is 5408971.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (17980451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2032 + ... + 6331.

It is an arithmetic number, because the mean of its divisors is an integer number (1426062).

Almost surely, 2^17980450 is an apocalyptic number.

17980450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17980450 is a deficient number, since it is larger than the sum of its proper divisors (16245038).

17980450 is a wasteful number, since it uses less digits than its factorization.

17980450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8418 (or 8413 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 17980450 is about 4240.3360715868. The cubic root of 17980450 is about 261.9792245050.

The spelling of 17980450 in words is "seventeen million, nine hundred eighty thousand, four hundred fifty".