47922228 has 36 divisors (see below), whose sum is σ = 122506020. Its totient is φ = 15793536.

The previous prime is 47922223. The next prime is 47922247. The reversal of 47922228 is 82222974.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10614564 + 37307664 = 3258^2 + 6108^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 47922192 and 47922201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47922223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4275 + ... + 10682.

It is an arithmetic number, because the mean of its divisors is an integer number (3402945).

Almost surely, 2^47922228 is an apocalyptic number.

It is an amenable number.

47922228 is an abundant number, since it is smaller than the sum of its proper divisors (74583792).

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

47922228 is a wasteful number, since it uses less digits than its factorization.

47922228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15056 (or 15051 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 47922228 is about 6922.5882442913. The cubic root of 47922228 is about 363.2277331544.

The spelling of 47922228 in words is "forty-seven million, nine hundred twenty-two thousand, two hundred twenty-eight".