223608381 has 8 divisors (see below), whose sum is σ = 298510944. Its totient is φ = 148889040.

The previous prime is 223608379. The next prime is 223608389. The reversal of 223608381 is 183806322.

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

It is not a de Polignac number, because 223608381 - 2¹ = 223608379 is a prime.

It is a super-2 number, since 2×223608381² = 100001416106882322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223608389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42931 + ... + 47856.

It is an arithmetic number, because the mean of its divisors is an integer number (37313868).

Almost surely, 2^223608381 is an apocalyptic number.

It is an amenable number.

223608381 is a deficient number, since it is larger than the sum of its proper divisors (74902563).

223608381 is an equidigital number, since it uses as much as digits as its factorization.

223608381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91611.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 223608381 is about 14953.5407512736. The cubic root of 223608381 is about 606.9636635335.

The spelling of 223608381 in words is "two hundred twenty-three million, six hundred eight thousand, three hundred eighty-one".