16945500 has 192 divisors, whose sum is σ = 58705920. Its totient is φ = 3744000.

The previous prime is 16945463. The next prime is 16945501. The reversal of 16945500 is 554961.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16945501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 214461 + ... + 214539.

It is an arithmetic number, because the mean of its divisors is an integer number (305760).

Almost surely, 2^16945500 is an apocalyptic number.

16945500 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 16945500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29352960).

16945500 is an abundant number, since it is smaller than the sum of its proper divisors (41760420).

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

16945500 is a wasteful number, since it uses less digits than its factorization.

16945500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 16945500 is about 4116.4912243317. The cubic root of 16945500 is about 256.8530907013.

The spelling of 16945500 in words is "sixteen million, nine hundred forty-five thousand, five hundred".