2239449420 has 288 divisors, whose sum is σ = 7177863168. Its totient is φ = 520805376.

The previous prime is 2239449347. The next prime is 2239449431. The reversal of 2239449420 is 249449322.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17633397 + ... + 17633523.

It is an arithmetic number, because the mean of its divisors is an integer number (24923136).

Almost surely, 2^2239449420 is an apocalyptic number.

2239449420 is a gapful number since it is divisible by the number (20) 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 2239449420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3588931584).

2239449420 is an abundant number, since it is smaller than the sum of its proper divisors (4938413748).

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

2239449420 is a wasteful number, since it uses less digits than its factorization.

2239449420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 2239449420 is about 47322.8213444634. The cubic root of 2239449420 is about 1308.3193138810.

The spelling of 2239449420 in words is "two billion, two hundred thirty-nine million, four hundred forty-nine thousand, four hundred twenty".