47272530 has 32 divisors (see below), whose sum is σ = 113742144. Its totient is φ = 12574016.

The previous prime is 47272501. The next prime is 47272531. The reversal of 47272530 is 3527274.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (47272531) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11512 + ... + 15068.

It is an arithmetic number, because the mean of its divisors is an integer number (3554442).

Almost surely, 2^47272530 is an apocalyptic number.

47272530 is an abundant number, since it is smaller than the sum of its proper divisors (66469614).

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

47272530 is a wasteful number, since it uses less digits than its factorization.

47272530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 47272530 is about 6875.5021634787. The cubic root of 47272530 is about 361.5787913478.

47272530 divided by its sum of digits (30) gives a palindrome (1575751).

The spelling of 47272530 in words is "forty-seven million, two hundred seventy-two thousand, five hundred thirty".