47244428 has 72 divisors (see below), whose sum is σ = 111177360. Its totient is φ = 17310720.

The previous prime is 47244419. The next prime is 47244433. The reversal of 47244428 is 82444274.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36008 + ... + 37296.

It is an arithmetic number, because the mean of its divisors is an integer number (1544130).

Almost surely, 2^47244428 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 47244428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55588680).

47244428 is an abundant number, since it is smaller than the sum of its proper divisors (63932932).

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

47244428 is a wasteful number, since it uses less digits than its factorization.

47244428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1326 counting only the distinct ones).

The product of its digits is 57344, while the sum is 35.

The square root of 47244428 is about 6873.4582271226. The cubic root of 47244428 is about 361.5071281547.

The spelling of 47244428 in words is "forty-seven million, two hundred forty-four thousand, four hundred twenty-eight".