47240028 has 36 divisors (see below), whose sum is σ = 130269048. Its totient is φ = 14315040.

The previous prime is 47240027. The next prime is 47240071. The reversal of 47240028 is 82004274.

47240028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 47239983 and 47240010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47240027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59251 + ... + 60042.

Almost surely, 2^47240028 is an apocalyptic number.

It is an amenable number.

47240028 is an abundant number, since it is smaller than the sum of its proper divisors (83029020).

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

47240028 is a wasteful number, since it uses less digits than its factorization.

47240028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119314 (or 119309 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 47240028 is about 6873.1381478914. The cubic root of 47240028 is about 361.4959050976.

The spelling of 47240028 in words is "forty-seven million, two hundred forty thousand, twenty-eight".