4239023840 has 48 divisors (see below), whose sum is σ = 10022872608. Its totient is φ = 1694224896.

The previous prime is 4239023827. The next prime is 4239023863. The reversal of 4239023840 is 483209324.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4239023840.

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, 198314 + ... + 218646.

It is an arithmetic number, because the mean of its divisors is an integer number (208809846).

Almost surely, 2^4239023840 is an apocalyptic number.

4239023840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4239023840 is an abundant number, since it is smaller than the sum of its proper divisors (5783848768).

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

4239023840 is a wasteful number, since it uses less digits than its factorization.

4239023840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21651 (or 21643 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 4239023840 is about 65107.7863239106. The cubic root of 4239023840 is about 1618.4102475839.

The spelling of 4239023840 in words is "four billion, two hundred thirty-nine million, twenty-three thousand, eight hundred forty".