47428488 has 48 divisors (see below), whose sum is σ = 129343500. Its totient is φ = 15699840.

The previous prime is 47428483. The next prime is 47428529. The reversal of 47428488 is 88482474.

It is a happy number.

47428488 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 47361924 + 66564 = 6882^2 + 258^2 .

It is a super-2 number, since 2×47428488² = 4498922947932288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47428483) 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, 8518 + ... + 12938.

Almost surely, 2^47428488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47428488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64671750).

47428488 is an abundant number, since it is smaller than the sum of its proper divisors (81915012).

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

47428488 is a wasteful number, since it uses less digits than its factorization.

47428488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4582 (or 4575 counting only the distinct ones).

The product of its digits is 458752, while the sum is 45.

The square root of 47428488 is about 6886.8343961504. The cubic root of 47428488 is about 361.9759861160.

The spelling of 47428488 in words is "forty-seven million, four hundred twenty-eight thousand, four hundred eighty-eight".