224239390 has 16 divisors (see below), whose sum is σ = 404503632. Its totient is φ = 89501824.

The previous prime is 224239361. The next prime is 224239391. The reversal of 224239390 is 93932422.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224239391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19339 + ... + 28678.

It is an arithmetic number, because the mean of its divisors is an integer number (25281477).

Almost surely, 2^224239390 is an apocalyptic number.

224239390 is a deficient number, since it is larger than the sum of its proper divisors (180264242).

224239390 is a wasteful number, since it uses less digits than its factorization.

224239390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48491.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 224239390 is about 14974.6248700927. The cubic root of 224239390 is about 607.5340652769.

It can be divided in two parts, 22423 and 9390, that added together give a palindrome (31813).

The spelling of 224239390 in words is "two hundred twenty-four million, two hundred thirty-nine thousand, three hundred ninety".