2215774 has 32 divisors (see below), whose sum is σ = 3939840. Its totient is φ = 924000.

The previous prime is 2215699. The next prime is 2215777. The reversal of 2215774 is 4775122.

It is a d-powerful number, because it can be written as 2²⁰ + 2²⁰ + 1 + 5⁴ + 7³ + 7⁶ + 4 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215777) 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 15 ways as a sum of consecutive naturals, for example, 14599 + ... + 14749.

It is an arithmetic number, because the mean of its divisors is an integer number (123120).

2^2215774 is an apocalyptic number.

2215774 is a deficient number, since it is larger than the sum of its proper divisors (1724066).

2215774 is a wasteful number, since it uses less digits than its factorization.

2215774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216.

The product of its digits is 3920, while the sum is 28.

The square root of 2215774 is about 1488.5476142872. The cubic root of 2215774 is about 130.3692460753.

It can be divided in two parts, 221 and 5774, that added together give a palindrome (5995).

The spelling of 2215774 in words is "two million, two hundred fifteen thousand, seven hundred seventy-four".