2821242249 has 12 divisors (see below), whose sum is σ = 4657288896. Its totient is φ = 1612138392.

The previous prime is 2821242223. The next prime is 2821242251. The reversal of 2821242249 is 9422421282.

It is not a de Polignac number, because 2821242249 - 2⁷ = 2821242121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2821242299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22390749 + ... + 22390874.

It is an arithmetic number, because the mean of its divisors is an integer number (388107408).

Almost surely, 2^2821242249 is an apocalyptic number.

It is an amenable number.

2821242249 is a deficient number, since it is larger than the sum of its proper divisors (1836046647).

2821242249 is a wasteful number, since it uses less digits than its factorization.

2821242249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44781636 (or 44781633 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 2821242249 is about 53115.3673525845. The cubic root of 2821242249 is about 1413.0150676882.

The spelling of 2821242249 in words is "two billion, eight hundred twenty-one million, two hundred forty-two thousand, two hundred forty-nine".