223426819 has 12 divisors (see below), whose sum is σ = 283533048. Its totient is φ = 174098400.

The previous prime is 223426811. The next prime is 223426829. The reversal of 223426819 is 918624322.

It is a happy number.

It is not a de Polignac number, because 223426819 - 2³ = 223426811 is a prime.

It is a super-2 number, since 2×223426819² = 99839086896917522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223426811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206722 + ... + 207799.

It is an arithmetic number, because the mean of its divisors is an integer number (23627754).

Almost surely, 2^223426819 is an apocalyptic number.

223426819 is a deficient number, since it is larger than the sum of its proper divisors (60106229).

223426819 is a wasteful number, since it uses less digits than its factorization.

223426819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414546 (or 414539 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 223426819 is about 14947.4686485706. The cubic root of 223426819 is about 606.7993414626.

It can be divided in two parts, 22342 and 6819, that added together give a triangular number (29161 = T₂₄₁).

The spelling of 223426819 in words is "two hundred twenty-three million, four hundred twenty-six thousand, eight hundred nineteen".