223024640 has 40 divisors (see below), whose sum is σ = 534742560. Its totient is φ = 89208832.

The previous prime is 223024639. The next prime is 223024651. The reversal of 223024640 is 46420322.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41000 + ... + 46119.

It is an arithmetic number, because the mean of its divisors is an integer number (13368564).

Almost surely, 2^223024640 is an apocalyptic number.

223024640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223024640 is an abundant number, since it is smaller than the sum of its proper divisors (311717920).

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

223024640 is an frugal number, since it uses more digits than its factorization.

223024640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87142 (or 87126 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 223024640 is about 14934.0095085011. The cubic root of 223024640 is about 606.4350334696.

Adding to 223024640 its reverse (46420322), we get a palindrome (269444962).

The spelling of 223024640 in words is "two hundred twenty-three million, twenty-four thousand, six hundred forty".