2229545172 has 96 divisors (see below), whose sum is σ = 5882526720. Its totient is φ = 653506560.

The previous prime is 2229545119. The next prime is 2229545173. The reversal of 2229545172 is 2715459222.

It is a self number, because there is not a number n which added to its sum of digits gives 2229545172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2229545173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177318 + ... + 189474.

It is an arithmetic number, because the mean of its divisors is an integer number (61276320).

Almost surely, 2^2229545172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2229545172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2941263360).

2229545172 is an abundant number, since it is smaller than the sum of its proper divisors (3652981548).

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

2229545172 is a wasteful number, since it uses less digits than its factorization.

2229545172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12241 (or 12239 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 2229545172 is about 47218.0598076626. The cubic root of 2229545172 is about 1306.3877276937.

The spelling of 2229545172 in words is "two billion, two hundred twenty-nine million, five hundred forty-five thousand, one hundred seventy-two".