2189410 has 8 divisors (see below), whose sum is σ = 3940956. Its totient is φ = 875760.

The previous prime is 2189399. The next prime is 2189417. The reversal of 2189410 is 149812.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1830609 + 358801 = 1353^2 + 599^2 .

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

It is a super-2 number, since 2×2189410² = 9587032296200, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

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 3 ways as a sum of consecutive naturals, for example, 109461 + ... + 109480.

2^2189410 is an apocalyptic number.

2189410 is a deficient number, since it is larger than the sum of its proper divisors (1751546).

2189410 is a wasteful number, since it uses less digits than its factorization.

2189410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218948.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 2189410 is about 1479.6655027404. The cubic root of 2189410 is about 129.8501231315.

It can be divided in two parts, 21894 and 10, that added together give a square (21904 = 148²).

The spelling of 2189410 in words is "two million, one hundred eighty-nine thousand, four hundred ten".