47971242 has 24 divisors (see below), whose sum is σ = 113387040. Its totient is φ = 14536680.

The previous prime is 47971241. The next prime is 47971243. The reversal of 47971242 is 24217974.

It is an interprime number because it is at equal distance from previous prime (47971241) and next prime (47971243).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 47971197 and 47971206.

It is not an unprimeable number, because it can be changed into a prime (47971241) 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, 120942 + ... + 121337.

It is an arithmetic number, because the mean of its divisors is an integer number (4724460).

Almost surely, 2^47971242 is an apocalyptic number.

47971242 is an abundant number, since it is smaller than the sum of its proper divisors (65415798).

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

47971242 is a wasteful number, since it uses less digits than its factorization.

47971242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242298 (or 242295 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 47971242 is about 6926.1274894417. The cubic root of 47971242 is about 363.3515252420.

The spelling of 47971242 in words is "forty-seven million, nine hundred seventy-one thousand, two hundred forty-two".