223435040 has 24 divisors (see below), whose sum is σ = 527865660. Its totient is φ = 89373952.

The previous prime is 223435019. The next prime is 223435103. The reversal of 223435040 is 40534322.

It can be written as a sum of positive squares in 2 ways, for example, as 219158416 + 4276624 = 14804^2 + 2068^2 .

It is a junction number, because it is equal to n+sod(n) for n = 223434997 and 223435015.

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 3 ways as a sum of consecutive naturals, for example, 698075 + ... + 698394.

Almost surely, 2^223435040 is an apocalyptic number.

223435040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223435040 is an abundant number, since it is smaller than the sum of its proper divisors (304430620).

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

223435040 is a wasteful number, since it uses less digits than its factorization.

223435040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396484 (or 1396476 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 223435040 is about 14947.7436424365. The cubic root of 223435040 is about 606.8067837744.

Adding to 223435040 its reverse (40534322), we get a palindrome (263969362).

The spelling of 223435040 in words is "two hundred twenty-three million, four hundred thirty-five thousand, forty".