47222784 has 208 divisors, whose sum is σ = 162509440. Its totient is φ = 13271040.

The previous prime is 47222783. The next prime is 47222789. The reversal of 47222784 is 48722274.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (47222783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 774114 + ... + 774174.

Almost surely, 2^47222784 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 47222784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81254720).

47222784 is an abundant number, since it is smaller than the sum of its proper divisors (115286656).

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

47222784 is an equidigital number, since it uses as much as digits as its factorization.

47222784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 73 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 47222784 is about 6871.8835845785. The cubic root of 47222784 is about 361.4519141977.

The spelling of 47222784 in words is "forty-seven million, two hundred twenty-two thousand, seven hundred eighty-four".