2189415 has 16 divisors (see below), whose sum is σ = 3523968. Its totient is φ = 1160736.

The previous prime is 2189399. The next prime is 2189417. The reversal of 2189415 is 5149812.

It is a happy number.

It is not a de Polignac number, because 2189415 - 2⁴ = 2189399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189417) 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, 3084 + ... + 3726.

It is an arithmetic number, because the mean of its divisors is an integer number (220248).

2^2189415 is an apocalyptic number.

2189415 is a deficient number, since it is larger than the sum of its proper divisors (1334553).

2189415 is a wasteful number, since it uses less digits than its factorization.

2189415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878.

The product of its digits is 2880, while the sum is 30.

The square root of 2189415 is about 1479.6671923105. The cubic root of 2189415 is about 129.8502219785.

The spelling of 2189415 in words is "two million, one hundred eighty-nine thousand, four hundred fifteen".