224640396 has 18 divisors (see below), whose sum is σ = 567841092. Its totient is φ = 74880120.

The previous prime is 224640349. The next prime is 224640421. The reversal of 224640396 is 693046422.

224640396 is a `hidden beast` number, since 2 + 2 + 4 + 640 + 3 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6240011 = 224640396 / (2 + 2 + 4 + 6 + 4 + 0 + 3 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 224640396.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3119970 + ... + 3120041.

Almost surely, 2^224640396 is an apocalyptic number.

It is an amenable number.

224640396 is an abundant number, since it is smaller than the sum of its proper divisors (343200696).

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

224640396 is a wasteful number, since it uses less digits than its factorization.

224640396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6240021 (or 6240016 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 224640396 is about 14988.0084067230. The cubic root of 224640396 is about 607.8959994955.

The spelling of 224640396 in words is "two hundred twenty-four million, six hundred forty thousand, three hundred ninety-six".