2189413 has 8 divisors (see below), whose sum is σ = 2398680. Its totient is φ = 1989120.

The previous prime is 2189399. The next prime is 2189417. The reversal of 2189413 is 3149812.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 494209 + 1695204 = 703^2 + 1302^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2189413 - 2⁵ = 2189381 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 1728 + ... + 2713.

It is an arithmetic number, because the mean of its divisors is an integer number (299835).

2^2189413 is an apocalyptic number.

It is an amenable number.

2189413 is a deficient number, since it is larger than the sum of its proper divisors (209267).

2189413 is a wasteful number, since it uses less digits than its factorization.

2189413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4487.

The product of its digits is 1728, while the sum is 28.

The square root of 2189413 is about 1479.6665164827. Note that the first 3 decimals coincide. The cubic root of 2189413 is about 129.8501824397.

The spelling of 2189413 in words is "two million, one hundred eighty-nine thousand, four hundred thirteen".