4239890928 has 180 divisors, whose sum is σ = 14684900880. Its totient is φ = 1118168064.

The previous prime is 4239890923. The next prime is 4239890929. The reversal of 4239890928 is 8290989324.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4239890923) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 157908 + ... + 182796.

Almost surely, 2^4239890928 is an apocalyptic number.

4239890928 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4239890928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7342450440).

4239890928 is an abundant number, since it is smaller than the sum of its proper divisors (10445009952).

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

4239890928 is a wasteful number, since it uses less digits than its factorization.

4239890928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24936 (or 24914 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 4239890928 is about 65114.4448490502. Note that the first 3 decimals coincide. The cubic root of 4239890928 is about 1618.5205881157.

The spelling of 4239890928 in words is "four billion, two hundred thirty-nine million, eight hundred ninety thousand, nine hundred twenty-eight".