2951772228 has 72 divisors (see below), whose sum is σ = 7585204536. Its totient is φ = 967680000.

The previous prime is 2951772139. The next prime is 2951772253. The reversal of 2951772228 is 8222771592.

2951772228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1443848004 + 1507924224 = 37998^2 + 38832^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1052428 + ... + 1055228.

It is an arithmetic number, because the mean of its divisors is an integer number (105350063).

Almost surely, 2^2951772228 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 2951772228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3792602268).

2951772228 is an abundant number, since it is smaller than the sum of its proper divisors (4633432308).

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

2951772228 is a wasteful number, since it uses less digits than its factorization.

2951772228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285 (or 3280 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 2951772228 is about 54330.2146875935. The cubic root of 2951772228 is about 1434.4792840124.

The spelling of 2951772228 in words is "two billion, nine hundred fifty-one million, seven hundred seventy-two thousand, two hundred twenty-eight".