2109392 has 10 divisors (see below), whose sum is σ = 4086978. Its totient is φ = 1054688.

The previous prime is 2109391. The next prime is 2109403. The reversal of 2109392 is 2939012.

It can be written as a sum of positive squares in only one way, i.e., 1430416 + 678976 = 1196^2 + 824^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65903 + ... + 65934.

2^2109392 is an apocalyptic number.

It is an amenable number.

2109392 is a deficient number, since it is larger than the sum of its proper divisors (1977586).

2109392 is a wasteful number, since it uses less digits than its factorization.

2109392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131845 (or 131839 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2109392 is about 1452.3746073242. The cubic root of 2109392 is about 128.2485405283.

The spelling of 2109392 in words is "two million, one hundred nine thousand, three hundred ninety-two".