223015240 has 64 divisors (see below), whose sum is σ = 591989760. Its totient is φ = 73992960.

The previous prime is 223015237. The next prime is 223015279. The reversal of 223015240 is 42510322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4167 + ... + 21526.

It is an arithmetic number, because the mean of its divisors is an integer number (9249840).

Almost surely, 2^223015240 is an apocalyptic number.

223015240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223015240 is an abundant number, since it is smaller than the sum of its proper divisors (368974520).

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

223015240 is a wasteful number, since it uses less digits than its factorization.

223015240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25742 (or 25738 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 223015240 is about 14933.6947872923. The cubic root of 223015240 is about 606.4265133805.

Adding to 223015240 its reverse (42510322), we get a palindrome (265525562).

The spelling of 223015240 in words is "two hundred twenty-three million, fifteen thousand, two hundred forty".