4004392 has 32 divisors (see below), whose sum is σ = 8956800. Its totient is φ = 1641024.

The previous prime is 4004387. The next prime is 4004393. The reversal of 4004392 is 2934004.

It is not an unprimeable number, because it can be changed into a prime (4004393) 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, 267 + ... + 2842.

It is an arithmetic number, because the mean of its divisors is an integer number (279900).

Almost surely, 2^4004392 is an apocalyptic number.

It is an amenable number.

4004392 is an abundant number, since it is smaller than the sum of its proper divisors (4952408).

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

4004392 is a wasteful number, since it uses less digits than its factorization.

4004392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145 (or 3141 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 4004392 is about 2001.0976987644. The cubic root of 4004392 is about 158.7981828241.

Adding to 4004392 its reverse (2934004), we get a palindrome (6938396).

The spelling of 4004392 in words is "four million, four thousand, three hundred ninety-two".