223430240 has 48 divisors (see below), whose sum is σ = 575845200. Its totient is φ = 81246720.

The previous prime is 223430219. The next prime is 223430261. The reversal of 223430240 is 42034322.

It is an interprime number because it is at equal distance from previous prime (223430219) and next prime (223430261).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 61715 + ... + 65234.

It is an arithmetic number, because the mean of its divisors is an integer number (11996775).

Almost surely, 2^223430240 is an apocalyptic number.

223430240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223430240 is an abundant number, since it is smaller than the sum of its proper divisors (352414960).

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

223430240 is a wasteful number, since it uses less digits than its factorization.

223430240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126975 (or 126967 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 223430240 is about 14947.5830822244. The cubic root of 223430240 is about 606.8024384497.

Adding to 223430240 its reverse (42034322), we get a palindrome (265464562).

The spelling of 223430240 in words is "two hundred twenty-three million, four hundred thirty thousand, two hundred forty".