4399836 has 24 divisors (see below), whose sum is σ = 11733120. Its totient is φ = 1257072.

The previous prime is 4399819. The next prime is 4399847. The reversal of 4399836 is 6389934.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26106 + ... + 26273.

It is an arithmetic number, because the mean of its divisors is an integer number (488880).

Almost surely, 2^4399836 is an apocalyptic number.

It is an amenable number.

4399836 is an abundant number, since it is smaller than the sum of its proper divisors (7333284).

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

4399836 is a wasteful number, since it uses less digits than its factorization.

4399836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52393 (or 52391 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 4399836 is about 2097.5786040099. The cubic root of 4399836 is about 163.8622182056.

The spelling of 4399836 in words is "four million, three hundred ninety-nine thousand, eight hundred thirty-six".