2239804 has 24 divisors (see below), whose sum is σ = 4515840. Its totient is φ = 952176.

The previous prime is 2239793. The next prime is 2239807. The reversal of 2239804 is 4089322.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239807) 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, 4437 + ... + 4915.

It is an arithmetic number, because the mean of its divisors is an integer number (188160).

2^2239804 is an apocalyptic number.

It is an amenable number.

2239804 is an abundant number, since it is smaller than the sum of its proper divisors (2276036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2239804 is a wasteful number, since it uses less digits than its factorization.

2239804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2239804 is about 1496.5974742729. The cubic root of 2239804 is about 130.8388360522.

The spelling of 2239804 in words is "two million, two hundred thirty-nine thousand, eight hundred four".