16172286 has 48 divisors (see below), whose sum is σ = 35970480. Its totient is φ = 4842240.

The previous prime is 16172263. The next prime is 16172353. The reversal of 16172286 is 68227161.

Its product of digits (8064) is a multiple of the sum of its prime divisors (448).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41380 + ... + 41768.

It is an arithmetic number, because the mean of its divisors is an integer number (749385).

Almost surely, 2^16172286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16172286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17985240).

16172286 is an abundant number, since it is smaller than the sum of its proper divisors (19798194).

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

16172286 is a wasteful number, since it uses less digits than its factorization.

16172286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 448 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 16172286 is about 4021.4780864752. The cubic root of 16172286 is about 252.8854277694.

The spelling of 16172286 in words is "sixteen million, one hundred seventy-two thousand, two hundred eighty-six".