224400812 has 12 divisors (see below), whose sum is σ = 392812560. Its totient is φ = 112168656.

The previous prime is 224400809. The next prime is 224400817. The reversal of 224400812 is 218004422.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (224400817) 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, 15953 + ... + 26519.

It is an arithmetic number, because the mean of its divisors is an integer number (32734380).

Almost surely, 2^224400812 is an apocalyptic number.

It is an amenable number.

224400812 is a deficient number, since it is larger than the sum of its proper divisors (168411748).

224400812 is a wasteful number, since it uses less digits than its factorization.

224400812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15880 (or 15878 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 224400812 is about 14980.0137516626. The cubic root of 224400812 is about 607.6798110668.

The spelling of 224400812 in words is "two hundred twenty-four million, four hundred thousand, eight hundred twelve".