2215398 has 16 divisors (see below), whose sum is σ = 4504176. Its totient is φ = 726240.

The previous prime is 2215393. The next prime is 2215399. The reversal of 2215398 is 8935122.

It is a happy number.

It is a d-powerful number, because it can be written as 2² + 2⁴ + 1 + 5⁹ + 3³ + 9² + 8⁶ .

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2661 + ... + 3392.

It is an arithmetic number, because the mean of its divisors is an integer number (281511).

2^2215398 is an apocalyptic number.

2215398 is an abundant number, since it is smaller than the sum of its proper divisors (2288778).

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

2215398 is a wasteful number, since it uses less digits than its factorization.

2215398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6119.

The product of its digits is 4320, while the sum is 30.

The square root of 2215398 is about 1488.4213113228. The cubic root of 2215398 is about 130.3618714349.

The spelling of 2215398 in words is "two million, two hundred fifteen thousand, three hundred ninety-eight".