2273649222 has 64 divisors (see below), whose sum is σ = 5141283840. Its totient is φ = 665073024.

The previous prime is 2273649197. The next prime is 2273649233. The reversal of 2273649222 is 2229463722.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295804 + ... + 303392.

It is an arithmetic number, because the mean of its divisors is an integer number (80332560).

Almost surely, 2^2273649222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2273649222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2570641920).

2273649222 is an abundant number, since it is smaller than the sum of its proper divisors (2867634618).

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

2273649222 is a wasteful number, since it uses less digits than its factorization.

2273649222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7797.

The product of its digits is 145152, while the sum is 39.

The square root of 2273649222 is about 47682.7979674012. The cubic root of 2273649222 is about 1314.9457050356.

The spelling of 2273649222 in words is "two billion, two hundred seventy-three million, six hundred forty-nine thousand, two hundred twenty-two".