224640642 has 16 divisors (see below), whose sum is σ = 449435520. Its totient is φ = 74854512.

The previous prime is 224640623. The next prime is 224640677. The reversal of 224640642 is 246046422.

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, 22584 + ... + 30972.

It is an arithmetic number, because the mean of its divisors is an integer number (28089720).

Almost surely, 2^224640642 is an apocalyptic number.

224640642 is an abundant number, since it is smaller than the sum of its proper divisors (224794878).

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

224640642 is a wasteful number, since it uses less digits than its factorization.

224640642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12857.

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 224640642 is about 14988.0166132814. The cubic root of 224640642 is about 607.8962213944.

The spelling of 224640642 in words is "two hundred twenty-four million, six hundred forty thousand, six hundred forty-two".