47890244 has 12 divisors (see below), whose sum is σ = 83922300. Its totient is φ = 23912448.

The previous prime is 47890243. The next prime is 47890259. The reversal of 47890244 is 44209874.

It can be written as a sum of positive squares in 2 ways, for example, as 18318400 + 29571844 = 4280^2 + 5438^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47890198 and 47890207.

It is not an unprimeable number, because it can be changed into a prime (47890243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4709 + ... + 10860.

It is an arithmetic number, because the mean of its divisors is an integer number (6993525).

Almost surely, 2^47890244 is an apocalyptic number.

It is an amenable number.

47890244 is a deficient number, since it is larger than the sum of its proper divisors (36032056).

47890244 is a wasteful number, since it uses less digits than its factorization.

47890244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16342 (or 16340 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 47890244 is about 6920.2777400911. The cubic root of 47890244 is about 363.1469073259.

The spelling of 47890244 in words is "forty-seven million, eight hundred ninety thousand, two hundred forty-four".