2239969 has 4 divisors (see below), whose sum is σ = 2257200. Its totient is φ = 2222740.

The previous prime is 2239961. The next prime is 2239987. The reversal of 2239969 is 9699322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2239969 - 2³ = 2239961 is a prime.

It is a super-2 number, since 2×2239969² = 10034922241922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2239961) 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, 8419 + ... + 8680.

It is an arithmetic number, because the mean of its divisors is an integer number (564300).

2^2239969 is an apocalyptic number.

It is an amenable number.

2239969 is a deficient number, since it is larger than the sum of its proper divisors (17231).

2239969 is a wasteful number, since it uses less digits than its factorization.

2239969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17230.

The product of its digits is 52488, while the sum is 40.

The square root of 2239969 is about 1496.6525983006. The cubic root of 2239969 is about 130.8420488151.

The spelling of 2239969 in words is "two million, two hundred thirty-nine thousand, nine hundred sixty-nine".