16700172 has 48 divisors (see below), whose sum is σ = 41432160. Its totient is φ = 5225472.

The previous prime is 16700149. The next prime is 16700191. The reversal of 16700172 is 27100761.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12228 + ... + 13524.

It is an arithmetic number, because the mean of its divisors is an integer number (863170).

Almost surely, 2^16700172 is an apocalyptic number.

16700172 is a gapful number since it is divisible by the number (12) 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 16700172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20716080).

16700172 is an abundant number, since it is smaller than the sum of its proper divisors (24731988).

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

16700172 is a wasteful number, since it uses less digits than its factorization.

16700172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370 (or 1368 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 16700172 is about 4086.5843928640. The cubic root of 16700172 is about 255.6075325770.

The spelling of 16700172 in words is "sixteen million, seven hundred thousand, one hundred seventy-two".