4239992 has 8 divisors (see below), whose sum is σ = 7950000. Its totient is φ = 2119992.

The previous prime is 4239979. The next prime is 4239997. The reversal of 4239992 is 2999324.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4239997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264992 + ... + 265007.

It is an arithmetic number, because the mean of its divisors is an integer number (993750).

Almost surely, 2^4239992 is an apocalyptic number.

It is an amenable number.

4239992 is a deficient number, since it is larger than the sum of its proper divisors (3710008).

4239992 is a wasteful number, since it uses less digits than its factorization.

4239992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530005 (or 530001 counting only the distinct ones).

The product of its digits is 34992, while the sum is 38.

The square root of 4239992 is about 2059.1240856248. The cubic root of 4239992 is about 161.8533448966.

The spelling of 4239992 in words is "four million, two hundred thirty-nine thousand, nine hundred ninety-two".