47444736 has 72 divisors (see below), whose sum is σ = 127382080. Its totient is φ = 15676416.

The previous prime is 47444723. The next prime is 47444741. The reversal of 47444736 is 63744474.

It is a junction number, because it is equal to n+sod(n) for n = 47444694 and 47444703.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124995 + ... + 125373.

Almost surely, 2^47444736 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 47444736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63691040).

47444736 is an abundant number, since it is smaller than the sum of its proper divisors (79937344).

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

47444736 is a wasteful number, since it uses less digits than its factorization.

47444736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 547 counting only the distinct ones).

The product of its digits is 225792, while the sum is 39.

The square root of 47444736 is about 6888.0139372681. The cubic root of 47444736 is about 362.0173165103.

The spelling of 47444736 in words is "forty-seven million, four hundred forty-four thousand, seven hundred thirty-six".