2189626 has 8 divisors (see below), whose sum is σ = 3294900. Its totient is φ = 1091328.

The previous prime is 2189609. The next prime is 2189633. The reversal of 2189626 is 6269812.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1692601 + 497025 = 1301^2 + 705^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2189591 and 2189600.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871 + ... + 2266.

2^2189626 is an apocalyptic number.

2189626 is a deficient number, since it is larger than the sum of its proper divisors (1105274).

2189626 is a wasteful number, since it uses less digits than its factorization.

2189626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3488.

The product of its digits is 10368, while the sum is 34.

The square root of 2189626 is about 1479.7384904097. The cubic root of 2189626 is about 129.8543931866.

The spelling of 2189626 in words is "two million, one hundred eighty-nine thousand, six hundred twenty-six".