2215674 has 48 divisors (see below), whose sum is σ = 5136768. Its totient is φ = 715392.

The previous prime is 2215673. The next prime is 2215691. The reversal of 2215674 is 4765122.

It is a super-2 number, since 2×2215674² = 9818422548552, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215673) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 22794 + ... + 22890.

It is an arithmetic number, because the mean of its divisors is an integer number (107016).

2^2215674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2568384).

2215674 is an abundant number, since it is smaller than the sum of its proper divisors (2921094).

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

2215674 is an equidigital number, since it uses as much as digits as its factorization.

2215674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 149 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 2215674 is about 1488.5140241194. The cubic root of 2215674 is about 130.3672848162.

The spelling of 2215674 in words is "two million, two hundred fifteen thousand, six hundred seventy-four".