47531232 has 192 divisors, whose sum is σ = 164505600. Its totient is φ = 13063680.

The previous prime is 47531227. The next prime is 47531243. The reversal of 47531232 is 23213574.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 47531196 and 47531205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175257 + ... + 175527.

It is an arithmetic number, because the mean of its divisors is an integer number (856800).

Almost surely, 2^47531232 is an apocalyptic number.

47531232 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47531232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82252800).

47531232 is an abundant number, since it is smaller than the sum of its proper divisors (116974368).

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

47531232 is a wasteful number, since it uses less digits than its factorization.

47531232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 312 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 47531232 is about 6894.2898111408. The cubic root of 47531232 is about 362.2371796105.

The spelling of 47531232 in words is "forty-seven million, five hundred thirty-one thousand, two hundred thirty-two".