2189492 has 6 divisors (see below), whose sum is σ = 3831618. Its totient is φ = 1094744.

The previous prime is 2189491. The next prime is 2189513. The reversal of 2189492 is 2949812.

It can be written as a sum of positive squares in only one way, i.e., 1999396 + 190096 = 1414^2 + 436^2 .

It is an Ulam number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273683 + ... + 273690.

It is an arithmetic number, because the mean of its divisors is an integer number (638603).

2^2189492 is an apocalyptic number.

It is an amenable number.

2189492 is a deficient number, since it is larger than the sum of its proper divisors (1642126).

2189492 is a wasteful number, since it uses less digits than its factorization.

2189492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547377 (or 547375 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 2189492 is about 1479.6932114462. The cubic root of 2189492 is about 129.8517442040.

The spelling of 2189492 in words is "two million, one hundred eighty-nine thousand, four hundred ninety-two".