47452812 has 48 divisors (see below), whose sum is σ = 121828224. Its totient is φ = 14374800.

The previous prime is 47452799. The next prime is 47452813. The reversal of 47452812 is 21825474.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (47452813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14487 + ... + 17457.

It is an arithmetic number, because the mean of its divisors is an integer number (2538088).

Almost surely, 2^47452812 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 47452812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60914112).

47452812 is an abundant number, since it is smaller than the sum of its proper divisors (74375412).

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

47452812 is a wasteful number, since it uses less digits than its factorization.

47452812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011 (or 2987 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 47452812 is about 6888.6001480707. The cubic root of 47452812 is about 362.0378560982.

It can be divided in two parts, 4745 and 2812, that added together give a palindrome (7557).

The spelling of 47452812 in words is "forty-seven million, four hundred fifty-two thousand, eight hundred twelve".