223666426 has 8 divisors (see below), whose sum is σ = 346322304. Its totient is φ = 108225660.

The previous prime is 223666409. The next prime is 223666427. The reversal of 223666426 is 624666322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×223666426² = 100053340239226952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (223666427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1803700 + ... + 1803823.

It is an arithmetic number, because the mean of its divisors is an integer number (43290288).

Almost surely, 2^223666426 is an apocalyptic number.

223666426 is a deficient number, since it is larger than the sum of its proper divisors (122655878).

223666426 is a wasteful number, since it uses less digits than its factorization.

223666426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607556.

The product of its digits is 124416, while the sum is 37.

The square root of 223666426 is about 14955.4814700163. The cubic root of 223666426 is about 607.0161781987.

The spelling of 223666426 in words is "two hundred twenty-three million, six hundred sixty-six thousand, four hundred twenty-six".