47008440 has 48 divisors (see below), whose sum is σ = 152778600. Its totient is φ = 12535488.

The previous prime is 47008411. The next prime is 47008441. The reversal of 47008440 is 4480074.

47008440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47008441) 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, 64930 + ... + 65649.

Almost surely, 2^47008440 is an apocalyptic number.

47008440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47008440 is an abundant number, since it is smaller than the sum of its proper divisors (105770160).

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

47008440 is a wasteful number, since it uses less digits than its factorization.

47008440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130596 (or 130589 counting only the distinct ones).

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

The square root of 47008440 is about 6856.2701230334. The cubic root of 47008440 is about 360.9042084884.

The spelling of 47008440 in words is "forty-seven million, eight thousand, four hundred forty".