47224944 has 100 divisors (see below), whose sum is σ = 147249256. Its totient is φ = 14525568.

The previous prime is 47224943. The next prime is 47224951. The reversal of 47224944 is 44942274.

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 = 47224899 and 47224908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47224943) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15447 + ... + 18249.

Almost surely, 2^47224944 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 47224944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73624628).

47224944 is an abundant number, since it is smaller than the sum of its proper divisors (100024312).

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

47224944 is a wasteful number, since it uses less digits than its factorization.

47224944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836 (or 2821 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 47224944 is about 6872.0407449316. The cubic root of 47224944 is about 361.4574251267.

The spelling of 47224944 in words is "forty-seven million, two hundred twenty-four thousand, nine hundred forty-four".