2249028240 has 80 divisors (see below), whose sum is σ = 7001337600. Its totient is φ = 597216256.

The previous prime is 2249028217. The next prime is 2249028241. The reversal of 2249028240 is 428209422.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (2249028241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37756 + ... + 76964.

It is an arithmetic number, because the mean of its divisors is an integer number (87516720).

Almost surely, 2^2249028240 is an apocalyptic number.

2249028240 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 2249028240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3500668800).

2249028240 is an abundant number, since it is smaller than the sum of its proper divisors (4752309360).

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

2249028240 is a wasteful number, since it uses less digits than its factorization.

2249028240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39464 (or 39458 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 2249028240 is about 47423.9205464921. The cubic root of 2249028240 is about 1310.1820231501.

The spelling of 2249028240 in words is "two billion, two hundred forty-nine million, twenty-eight thousand, two hundred forty".