17031980 has 72 divisors (see below), whose sum is σ = 43269408. Its totient is φ = 5515776.

The previous prime is 17031979. The next prime is 17031991. The reversal of 17031980 is 8913071.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50372 + ... + 50708.

It is an arithmetic number, because the mean of its divisors is an integer number (600964).

Almost surely, 2^17031980 is an apocalyptic number.

17031980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17031980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21634704).

17031980 is an abundant number, since it is smaller than the sum of its proper divisors (26237428).

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

17031980 is a wasteful number, since it uses less digits than its factorization.

17031980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 17031980 is about 4126.9819481069. The cubic root of 17031980 is about 257.2892925488.

The spelling of 17031980 in words is "seventeen million, thirty-one thousand, nine hundred eighty".