47818272 has 48 divisors (see below), whose sum is σ = 126403200. Its totient is φ = 15827712.

The previous prime is 47818271. The next prime is 47818273. The reversal of 47818272 is 27281874.

It is an interprime number because it is at equal distance from previous prime (47818271) and next prime (47818273).

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 47818272.

It is not an unprimeable number, because it can be changed into a prime (47818271) 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 7 ways as a sum of consecutive naturals, for example, 12633 + ... + 15975.

It is an arithmetic number, because the mean of its divisors is an integer number (2633400).

Almost surely, 2^47818272 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 47818272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63201600).

47818272 is an abundant number, since it is smaller than the sum of its proper divisors (78584928).

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

47818272 is a wasteful number, since it uses less digits than its factorization.

47818272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3505 (or 3497 counting only the distinct ones).

The product of its digits is 50176, while the sum is 39.

The square root of 47818272 is about 6915.0757045748. The cubic root of 47818272 is about 362.9648973031.

The spelling of 47818272 in words is "forty-seven million, eight hundred eighteen thousand, two hundred seventy-two".