47668530 has 128 divisors (see below), whose sum is σ = 148377600. Its totient is φ = 9517824.

The previous prime is 47668513. The next prime is 47668531. The reversal of 47668530 is 3586674.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (47668531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51411 + ... + 52329.

It is an arithmetic number, because the mean of its divisors is an integer number (1159200).

Almost surely, 2^47668530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47668530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74188800).

47668530 is an abundant number, since it is smaller than the sum of its proper divisors (100709070).

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

47668530 is a wasteful number, since it uses less digits than its factorization.

47668530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 47668530 is about 6904.2400016222. The cubic root of 47668530 is about 362.5856286022.

It can be divided in two parts, 476 and 68530, that added together give a triangular number (69006 = T₃₇₁).

The spelling of 47668530 in words is "forty-seven million, six hundred sixty-eight thousand, five hundred thirty".