2239446840 has 32 divisors (see below), whose sum is σ = 6718340880. Its totient is φ = 597185792.

The previous prime is 2239446829. The next prime is 2239446863. The reversal of 2239446840 is 486449322.

It is a junction number, because it is equal to n+sod(n) for n = 2239446792 and 2239446801.

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, 9330909 + ... + 9331148.

Almost surely, 2^2239446840 is an apocalyptic number.

2239446840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2239446840 is an abundant number, since it is smaller than the sum of its proper divisors (4478894040).

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

2239446840 is a wasteful number, since it uses less digits than its factorization.

2239446840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18662071 (or 18662067 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The square root of 2239446840 is about 47322.7940848805. The cubic root of 2239446840 is about 1308.3188114561.

The spelling of 2239446840 in words is "two billion, two hundred thirty-nine million, four hundred forty-six thousand, eight hundred forty".