2249594921 has 8 divisors (see below), whose sum is σ = 2722199040. Its totient is φ = 1814799168.

The previous prime is 2249594891. The next prime is 2249594939. The reversal of 2249594921 is 1294959422.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2249594921 - 2¹⁰ = 2249593897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2249594951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9451961 + ... + 9452198.

It is an arithmetic number, because the mean of its divisors is an integer number (340274880).

Almost surely, 2^2249594921 is an apocalyptic number.

It is an amenable number.

2249594921 is a deficient number, since it is larger than the sum of its proper divisors (472604119).

2249594921 is a wasteful number, since it uses less digits than its factorization.

2249594921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18904183.

The product of its digits is 466560, while the sum is 47.

The square root of 2249594921 is about 47429.8948027507. The cubic root of 2249594921 is about 1310.2920548068.

The spelling of 2249594921 in words is "two billion, two hundred forty-nine million, five hundred ninety-four thousand, nine hundred twenty-one".