47528440 has 32 divisors (see below), whose sum is σ = 107516160. Its totient is φ = 18908800.

The previous prime is 47528431. The next prime is 47528441. The reversal of 47528440 is 4482574.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 47528396 and 47528405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47528441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4530 + ... + 10750.

It is an arithmetic number, because the mean of its divisors is an integer number (3359880).

Almost surely, 2^47528440 is an apocalyptic number.

47528440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47528440 is an abundant number, since it is smaller than the sum of its proper divisors (59987720).

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

47528440 is a wasteful number, since it uses less digits than its factorization.

47528440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6423 (or 6419 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 47528440 is about 6894.0873217562. The cubic root of 47528440 is about 362.2300868284.

The spelling of 47528440 in words is "forty-seven million, five hundred twenty-eight thousand, four hundred forty".