223040640 has 64 divisors (see below), whose sum is σ = 710948160. Its totient is φ = 59476992.

The previous prime is 223040617. The next prime is 223040681. The reversal of 223040640 is 46040322.

223040640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56164 + ... + 60003.

It is an arithmetic number, because the mean of its divisors is an integer number (11108565).

Almost surely, 2^223040640 is an apocalyptic number.

223040640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223040640 is an abundant number, since it is smaller than the sum of its proper divisors (487907520).

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

223040640 is a wasteful number, since it uses less digits than its factorization.

223040640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116189 (or 116177 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 223040640 is about 14934.5451889236. The cubic root of 223040640 is about 606.4495351983.

Adding to 223040640 its reverse (46040322), we get a palindrome (269080962).

The spelling of 223040640 in words is "two hundred twenty-three million, forty thousand, six hundred forty".