2238649 has 8 divisors (see below), whose sum is σ = 2571008. Its totient is φ = 1909440.

The previous prime is 2238647. The next prime is 2238653. The reversal of 2238649 is 9468322.

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

It is a cyclic number.

It is not a de Polignac number, because 2238649 - 2¹ = 2238647 is a prime.

It is a Duffinian number.

2238649 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2238647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1024 + ... + 2350.

It is an arithmetic number, because the mean of its divisors is an integer number (321376).

2^2238649 is an apocalyptic number.

It is an amenable number.

2238649 is a deficient number, since it is larger than the sum of its proper divisors (332359).

2238649 is a wasteful number, since it uses less digits than its factorization.

2238649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575.

The product of its digits is 20736, while the sum is 34.

The square root of 2238649 is about 1496.2115492135. The cubic root of 2238649 is about 130.8163422925.

The spelling of 2238649 in words is "two million, two hundred thirty-eight thousand, six hundred forty-nine".