47281388 has 24 divisors (see below), whose sum is σ = 103160064. Its totient is φ = 18421200.

The previous prime is 47281373. The next prime is 47281411. The reversal of 47281388 is 88318274.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76448 + ... + 77063.

It is an arithmetic number, because the mean of its divisors is an integer number (4298336).

Almost surely, 2^47281388 is an apocalyptic number.

It is an amenable number.

47281388 is an abundant number, since it is smaller than the sum of its proper divisors (55878676).

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

47281388 is a wasteful number, since it uses less digits than its factorization.

47281388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153533 (or 153531 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 47281388 is about 6876.1463044354. The cubic root of 47281388 is about 361.6013743356.

It can be divided in two parts, 4728 and 1388, that added together give a palindrome (6116).

The spelling of 47281388 in words is "forty-seven million, two hundred eighty-one thousand, three hundred eighty-eight".