47213244 has 72 divisors (see below), whose sum is σ = 130253760. Its totient is φ = 14332032.

The previous prime is 47213237. The next prime is 47213249. The reversal of 47213244 is 44231274.

47213244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47213249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36334 + ... + 37610.

It is an arithmetic number, because the mean of its divisors is an integer number (1809080).

Almost surely, 2^47213244 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 47213244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65126880).

47213244 is an abundant number, since it is smaller than the sum of its proper divisors (83040516).

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

47213244 is a wasteful number, since it uses less digits than its factorization.

47213244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379 (or 1374 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 47213244 is about 6871.1894166876. The cubic root of 47213244 is about 361.4275722508.

The spelling of 47213244 in words is "forty-seven million, two hundred thirteen thousand, two hundred forty-four".