47124432 has 60 divisors (see below), whose sum is σ = 133401060. Its totient is φ = 15527424.

The previous prime is 47124419. The next prime is 47124437. The reversal of 47124432 is 23442174.

It can be written as a sum of positive squares in 2 ways, for example, as 23270976 + 23853456 = 4824^2 + 4884^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47124396 and 47124405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47124437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10978 + ... + 14654.

It is an arithmetic number, because the mean of its divisors is an integer number (2223351).

Almost surely, 2^47124432 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 47124432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66700530).

47124432 is an abundant number, since it is smaller than the sum of its proper divisors (86276628).

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

47124432 is a wasteful number, since it uses less digits than its factorization.

47124432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780 (or 3771 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 47124432 is about 6864.7237380684. The cubic root of 47124432 is about 361.2008049930.

The spelling of 47124432 in words is "forty-seven million, one hundred twenty-four thousand, four hundred thirty-two".