2249121868 has 24 divisors (see below), whose sum is σ = 4501728000. Its totient is φ = 963162768.

The previous prime is 2249121857. The next prime is 2249121893. The reversal of 2249121868 is 8681219422.

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, 6483 + ... + 67381.

It is an arithmetic number, because the mean of its divisors is an integer number (187572000).

Almost surely, 2^2249121868 is an apocalyptic number.

2249121868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2249121868 is an abundant number, since it is smaller than the sum of its proper divisors (2252606132).

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

2249121868 is a wasteful number, since it uses less digits than its factorization.

2249121868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62229 (or 62227 counting only the distinct ones).

The product of its digits is 110592, while the sum is 43.

The square root of 2249121868 is about 47424.9076751869. The cubic root of 2249121868 is about 1310.2002040423.

The spelling of 2249121868 in words is "two billion, two hundred forty-nine million, one hundred twenty-one thousand, eight hundred sixty-eight".