2215394 has 8 divisors (see below), whose sum is σ = 3404268. Its totient is φ = 1080640.

The previous prime is 2215393. The next prime is 2215399. The reversal of 2215394 is 4935122.

2215394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2211169 + 4225 = 1487^2 + 65^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 2 + 2⁵ + 1 + 5⁹ + 3⁴ + 9 + 4⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13427 + ... + 13590.

2^2215394 is an apocalyptic number.

2215394 is a deficient number, since it is larger than the sum of its proper divisors (1188874).

2215394 is a wasteful number, since it uses less digits than its factorization.

2215394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27060.

The product of its digits is 2160, while the sum is 26.

The square root of 2215394 is about 1488.4199676167. The cubic root of 2215394 is about 130.3617929768.

The spelling of 2215394 in words is "two million, two hundred fifteen thousand, three hundred ninety-four".