2189776 has 10 divisors (see below), whose sum is σ = 4242722. Its totient is φ = 1094880.

The previous prime is 2189767. The next prime is 2189783. The reversal of 2189776 is 6779812.

It can be written as a sum of positive squares in only one way, i.e., 1587600 + 602176 = 1260^2 + 776^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68415 + ... + 68446.

2^2189776 is an apocalyptic number.

It is an amenable number.

2189776 is a deficient number, since it is larger than the sum of its proper divisors (2052946).

2189776 is a wasteful number, since it uses less digits than its factorization.

2189776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136869 (or 136863 counting only the distinct ones).

The product of its digits is 42336, while the sum is 40.

The square root of 2189776 is about 1479.7891741731. The cubic root of 2189776 is about 129.8573583375.

The spelling of 2189776 in words is "two million, one hundred eighty-nine thousand, seven hundred seventy-six".