223499649 has 16 divisors (see below), whose sum is σ = 302054400. Its totient is φ = 146985216.

The previous prime is 223499623. The next prime is 223499701. The reversal of 223499649 is 946994322.

It is not a de Polignac number, because 223499649 - 2²³ = 215111041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223499598 and 223499607.

It is not an unprimeable number, because it can be changed into a prime (223499609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76192 + ... + 79070.

It is an arithmetic number, because the mean of its divisors is an integer number (18878400).

Almost surely, 2^223499649 is an apocalyptic number.

It is an amenable number.

223499649 is a deficient number, since it is larger than the sum of its proper divisors (78554751).

223499649 is a wasteful number, since it uses less digits than its factorization.

223499649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3224.

The product of its digits is 839808, while the sum is 48.

The square root of 223499649 is about 14949.9046485254. The cubic root of 223499649 is about 606.8652666952.

The spelling of 223499649 in words is "two hundred twenty-three million, four hundred ninety-nine thousand, six hundred forty-nine".