47473280 has 32 divisors (see below), whose sum is σ = 113492340. Its totient is φ = 18989056.

The previous prime is 47473277. The next prime is 47473289. The reversal of 47473280 is 8237474.

It can be written as a sum of positive squares in 2 ways, for example, as 46566976 + 906304 = 6824^2 + 952^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 47473280.

It is not an unprimeable number, because it can be changed into a prime (47473289) 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, 36449 + ... + 37728.

Almost surely, 2^47473280 is an apocalyptic number.

47473280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47473280 is an abundant number, since it is smaller than the sum of its proper divisors (66019060).

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

47473280 is an equidigital number, since it uses as much as digits as its factorization.

47473280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74196 (or 74184 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 47473280 is about 6890.0856308177. The cubic root of 47473280 is about 362.0899016663.

The spelling of 47473280 in words is "forty-seven million, four hundred seventy-three thousand, two hundred eighty".