223662401 has 4 divisors (see below), whose sum is σ = 223738032. Its totient is φ = 223586772.

The previous prime is 223662391. The next prime is 223662409. The reversal of 223662401 is 104266322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104266322 = 2 ⋅52133161.

It is a cyclic number.

It is not a de Polignac number, because 223662401 - 2¹⁰ = 223661377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223662409) 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, 33191 + ... + 39356.

It is an arithmetic number, because the mean of its divisors is an integer number (55934508).

Almost surely, 2^223662401 is an apocalyptic number.

It is an amenable number.

223662401 is a deficient number, since it is larger than the sum of its proper divisors (75631).

223662401 is an equidigital number, since it uses as much as digits as its factorization.

223662401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75630.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 223662401 is about 14955.3469033654. The cubic root of 223662401 is about 607.0125369805.

The spelling of 223662401 in words is "two hundred twenty-three million, six hundred sixty-two thousand, four hundred one".