47044420 has 24 divisors (see below), whose sum is σ = 100415448. Its totient is φ = 18508800.

The previous prime is 47044397. The next prime is 47044429. The reversal of 47044420 is 2444074.

It can be written as a sum of positive squares in 4 ways, for example, as 695556 + 46348864 = 834^2 + 6808^2 .

It is not an unprimeable number, because it can be changed into a prime (47044429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18061 + ... + 20500.

It is an arithmetic number, because the mean of its divisors is an integer number (4183977).

Almost surely, 2^47044420 is an apocalyptic number.

It is an amenable number.

47044420 is an abundant number, since it is smaller than the sum of its proper divisors (53371028).

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

47044420 is a wasteful number, since it uses less digits than its factorization.

47044420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38631 (or 38629 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 47044420 is about 6858.8934967675. The cubic root of 47044420 is about 360.9962630348.

Adding to 47044420 its reverse (2444074), we get a palindrome (49488494).

The spelling of 47044420 in words is "forty-seven million, forty-four thousand, four hundred twenty".