47115280 has 20 divisors (see below), whose sum is σ = 109543212. Its totient is φ = 18846080.

The previous prime is 47115253. The next prime is 47115281. The reversal of 47115280 is 8251174.

It can be written as a sum of positive squares in 2 ways, for example, as 16777216 + 30338064 = 4096^2 + 5508^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (47115281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294391 + ... + 294550.

Almost surely, 2^47115280 is an apocalyptic number.

47115280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47115280 is an abundant number, since it is smaller than the sum of its proper divisors (62427932).

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

47115280 is a wasteful number, since it uses less digits than its factorization.

47115280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588954 (or 588948 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 47115280 is about 6864.0571093195. The cubic root of 47115280 is about 361.1774206348.

It can be divided in two parts, 471 and 15280, that added together give a palindrome (15751).

The spelling of 47115280 in words is "forty-seven million, one hundred fifteen thousand, two hundred eighty".