2239658 has 8 divisors (see below), whose sum is σ = 3379428. Its totient is φ = 1113184.

The previous prime is 2239651. The next prime is 2239667. The reversal of 2239658 is 8569322.

It can be written as a sum of positive squares in 2 ways, for example, as 2229049 + 10609 = 1493^2 + 103^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2239651) 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, 2891 + ... + 3582.

2^2239658 is an apocalyptic number.

2239658 is a deficient number, since it is larger than the sum of its proper divisors (1139770).

2239658 is a wasteful number, since it uses less digits than its factorization.

2239658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6648.

The product of its digits is 25920, while the sum is 35.

The square root of 2239658 is about 1496.5486961673. The cubic root of 2239658 is about 130.8359931122.

The spelling of 2239658 in words is "two million, two hundred thirty-nine thousand, six hundred fifty-eight".