47143272 has 64 divisors (see below), whose sum is σ = 129231360. Its totient is φ = 14212800.

The previous prime is 47143259. The next prime is 47143273. The reversal of 47143272 is 27234174.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (47143273) 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, 74397 + ... + 75027.

It is an arithmetic number, because the mean of its divisors is an integer number (2019240).

Almost surely, 2^47143272 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 47143272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64615680).

47143272 is an abundant number, since it is smaller than the sum of its proper divisors (82088088).

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

47143272 is a wasteful number, since it uses less digits than its factorization.

47143272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 930 counting only the distinct ones).

The product of its digits is 9408, while the sum is 30.

The square root of 47143272 is about 6866.0958338782. The cubic root of 47143272 is about 361.2489337181.

The spelling of 47143272 in words is "forty-seven million, one hundred forty-three thousand, two hundred seventy-two".