4181922 has 32 divisors (see below), whose sum is σ = 9514560. Its totient is φ = 1360800.

The previous prime is 4181917. The next prime is 4181927. The reversal of 4181922 is 2291814.

It is an interprime number because it is at equal distance from previous prime (4181917) and next prime (4181927).

It is a super-2 number, since 2×4181922² = 34976943228168, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (4181927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1422 + ... + 3222.

It is an arithmetic number, because the mean of its divisors is an integer number (297330).

Almost surely, 2^4181922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4181922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4757280).

4181922 is an abundant number, since it is smaller than the sum of its proper divisors (5332638).

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

4181922 is a wasteful number, since it uses less digits than its factorization.

4181922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855 (or 1849 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 4181922 is about 2044.9748164709. The cubic root of 4181922 is about 161.1110430792. Note that the first 3 decimals are identical.

The spelling of 4181922 in words is "four million, one hundred eighty-one thousand, nine hundred twenty-two".