4399236 has 18 divisors (see below), whose sum is σ = 11120382. Its totient is φ = 1466400.

The previous prime is 4399223. The next prime is 4399237. The reversal of 4399236 is 6329934.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4384836 + 14400 = 2094^2 + 120^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 122201 = 4399236 / (4 + 3 + 9 + 9 + 2 + 3 + 6).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 4399236.

It is not an unprimeable number, because it can be changed into a prime (4399237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61065 + ... + 61136.

It is an arithmetic number, because the mean of its divisors is an integer number (617799).

Almost surely, 2^4399236 is an apocalyptic number.

It is an amenable number.

4399236 is an abundant number, since it is smaller than the sum of its proper divisors (6721146).

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

4399236 is a wasteful number, since it uses less digits than its factorization.

4399236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122211 (or 122206 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 4399236 is about 2097.4355770798. The cubic root of 4399236 is about 163.8547693067.

The spelling of 4399236 in words is "four million, three hundred ninety-nine thousand, two hundred thirty-six".