47212272 has 60 divisors (see below), whose sum is σ = 134392440. Its totient is φ = 15467904.

The previous prime is 47212267. The next prime is 47212273. The reversal of 47212272 is 27221274.

47212272 is a `hidden beast` number, since 472 + 122 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47212273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5718 + ... + 11274.

It is an arithmetic number, because the mean of its divisors is an integer number (2239874).

Almost surely, 2^47212272 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 47212272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67196220).

47212272 is an abundant number, since it is smaller than the sum of its proper divisors (87180168).

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

47212272 is a wasteful number, since it uses less digits than its factorization.

47212272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630 (or 5621 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 47212272 is about 6871.1186862111. The cubic root of 47212272 is about 361.4250919439.

The spelling of 47212272 in words is "forty-seven million, two hundred twelve thousand, two hundred seventy-two".