47447244 has 36 divisors (see below), whose sum is σ = 129163216. Its totient is φ = 14599008.

The previous prime is 47447227. The next prime is 47447249. The reversal of 47447244 is 44274474.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 47447199 and 47447208.

It is not an unprimeable number, because it can be changed into a prime (47447249) 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, 50224 + ... + 51159.

Almost surely, 2^47447244 is an apocalyptic number.

It is an amenable number.

47447244 is an abundant number, since it is smaller than the sum of its proper divisors (81715972).

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

47447244 is a wasteful number, since it uses less digits than its factorization.

47447244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101406 (or 101401 counting only the distinct ones).

The product of its digits is 100352, while the sum is 36.

The square root of 47447244 is about 6888.1959902430. The cubic root of 47447244 is about 362.0236953243.

The spelling of 47447244 in words is "forty-seven million, four hundred forty-seven thousand, two hundred forty-four".