47488840 has 48 divisors (see below), whose sum is σ = 124299900. Its totient is φ = 16281216.

The previous prime is 47488829. The next prime is 47488841. The reversal of 47488840 is 4888474.

47488840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 43480836 + 4008004 = 6594^2 + 2002^2 .

It is not an unprimeable number, because it can be changed into a prime (47488841) 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, 10155 + ... + 14074.

Almost surely, 2^47488840 is an apocalyptic number.

47488840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47488840 is an abundant number, since it is smaller than the sum of its proper divisors (76811060).

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

47488840 is a wasteful number, since it uses less digits than its factorization.

47488840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24254 (or 24243 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 43.

The square root of 47488840 is about 6891.2146969892. The cubic root of 47488840 is about 362.1294572748.

The spelling of 47488840 in words is "forty-seven million, four hundred eighty-eight thousand, eight hundred forty".