47240128 has 28 divisors (see below), whose sum is σ = 100954840. Its totient is φ = 21802752.

The previous prime is 47240117. The next prime is 47240129. The reversal of 47240128 is 82104274.

It is a junction number, because it is equal to n+sod(n) for n = 47240096 and 47240105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47240129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27558 + ... + 29221.

It is an arithmetic number, because the mean of its divisors is an integer number (3605530).

Almost surely, 2^47240128 is an apocalyptic number.

It is an amenable number.

47240128 is an abundant number, since it is smaller than the sum of its proper divisors (53714712).

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

47240128 is a wasteful number, since it uses less digits than its factorization.

47240128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56804 (or 56794 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 47240128 is about 6873.1454225849. The cubic root of 47240128 is about 361.4961601748.

The spelling of 47240128 in words is "forty-seven million, two hundred forty thousand, one hundred twenty-eight".