3722166 has 64 divisors (see below), whose sum is σ = 9715200. Its totient is φ = 1034208.

The previous prime is 3722149. The next prime is 3722171. The reversal of 3722166 is 6612273.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16140 + ... + 16368.

It is an arithmetic number, because the mean of its divisors is an integer number (151800).

Almost surely, 2^3722166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3722166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4857600).

3722166 is an abundant number, since it is smaller than the sum of its proper divisors (5993034).

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

3722166 is a wasteful number, since it uses less digits than its factorization.

3722166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 284 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 3722166 is about 1929.2915798292. The cubic root of 3722166 is about 154.9762849601.

The spelling of 3722166 in words is "three million, seven hundred twenty-two thousand, one hundred sixty-six".