2249321772 has 18 divisors (see below), whose sum is σ = 5248800844. Its totient is φ = 749719160.

The previous prime is 2249321761. The next prime is 2249321773. The reversal of 2249321772 is 2771239422.

It is a self number, because there is not a number n which added to its sum of digits gives 2249321772.

It is not an unprimeable number, because it can be changed into a prime (2249321773) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157447 + ... + 171137.

Almost surely, 2^2249321772 is an apocalyptic number.

It is an amenable number.

2249321772 is an abundant number, since it is smaller than the sum of its proper divisors (2999479072).

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

2249321772 is an frugal number, since it uses more digits than its factorization.

2249321772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27389 (or 13696 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 2249321772 is about 47427.0152128510. The cubic root of 2249321772 is about 1310.2390201548.

Multiplying 2249321772 by its product of digits (84672), we get a square (190454573078784 = 13800528²).

The spelling of 2249321772 in words is "two billion, two hundred forty-nine million, three hundred twenty-one thousand, seven hundred seventy-two".