223626431 has 8 divisors (see below), whose sum is σ = 255697440. Its totient is φ = 191586528.

The previous prime is 223626421. The next prime is 223626439. The reversal of 223626431 is 134626322.

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

It is not a de Polignac number, because 223626431 - 2⁶ = 223626367 is a prime.

It is a super-2 number, since 2×223626431² = 100017561283595522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223626394 and 223626403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223626439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10505 + ... + 23613.

It is an arithmetic number, because the mean of its divisors is an integer number (31962180).

Almost surely, 2^223626431 is an apocalyptic number.

223626431 is a deficient number, since it is larger than the sum of its proper divisors (32071009).

223626431 is a wasteful number, since it uses less digits than its factorization.

223626431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15553.

The product of its digits is 10368, while the sum is 29.

The square root of 223626431 is about 14954.1442750831. The cubic root of 223626431 is about 606.9799947629.

The spelling of 223626431 in words is "two hundred twenty-three million, six hundred twenty-six thousand, four hundred thirty-one".