47449452 has 48 divisors (see below), whose sum is σ = 116524800. Its totient is φ = 15005760.

The previous prime is 47449447. The next prime is 47449453. The reversal of 47449452 is 25494474.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 47449452.

It is not an unprimeable number, because it can be changed into a prime (47449453) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 19377 + ... + 21687.

It is an arithmetic number, because the mean of its divisors is an integer number (2427600).

Almost surely, 2^47449452 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 47449452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58262400).

47449452 is an abundant number, since it is smaller than the sum of its proper divisors (69075348).

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

47449452 is a wasteful number, since it uses less digits than its factorization.

47449452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406 (or 2404 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 47449452 is about 6888.3562625637. The cubic root of 47449452 is about 362.0293109362.

It can be divided in two parts, 4744 and 9452, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 47449452 in words is "forty-seven million, four hundred forty-nine thousand, four hundred fifty-two".