47724842 has 8 divisors (see below), whose sum is σ = 78095232. Its totient is φ = 21693100.

The previous prime is 47724829. The next prime is 47724863. The reversal of 47724842 is 24842774.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 47724796 and 47724805.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084634 + ... + 1084677.

It is an arithmetic number, because the mean of its divisors is an integer number (9761904).

Almost surely, 2^47724842 is an apocalyptic number.

47724842 is a deficient number, since it is larger than the sum of its proper divisors (30370390).

47724842 is a wasteful number, since it uses less digits than its factorization.

47724842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169324.

The product of its digits is 100352, while the sum is 38.

The square root of 47724842 is about 6908.3168717134. The cubic root of 47724842 is about 362.7283495066.

The spelling of 47724842 in words is "forty-seven million, seven hundred twenty-four thousand, eight hundred forty-two".