223623426 has 32 divisors (see below), whose sum is σ = 507003840. Its totient is φ = 65185344.

The previous prime is 223623409. The next prime is 223623443. The reversal of 223623426 is 624326322.

It is an interprime number because it is at equal distance from previous prime (223623409) and next prime (223623443).

It is a junction number, because it is equal to n+sod(n) for n = 223623393 and 223623402.

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 15 ways as a sum of consecutive naturals, for example, 73965 + ... + 76928.

It is an arithmetic number, because the mean of its divisors is an integer number (15843870).

Almost surely, 2^223623426 is an apocalyptic number.

223623426 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

223623426 is an abundant number, since it is smaller than the sum of its proper divisors (283380414).

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

223623426 is a wasteful number, since it uses less digits than its factorization.

223623426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150930.

The product of its digits is 20736, while the sum is 30.

The square root of 223623426 is about 14954.0438009256. The cubic root of 223623426 is about 606.9772759683.

Adding to 223623426 its reverse (624326322), we get a palindrome (847949748).

The spelling of 223623426 in words is "two hundred twenty-three million, six hundred twenty-three thousand, four hundred twenty-six".