223964536 has 8 divisors (see below), whose sum is σ = 419933520. Its totient is φ = 111982264.

The previous prime is 223964527. The next prime is 223964537. The reversal of 223964536 is 635469322.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×223964536² = 100320226771390592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223964537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13997776 + ... + 13997791.

It is an arithmetic number, because the mean of its divisors is an integer number (52491690).

Almost surely, 2^223964536 is an apocalyptic number.

It is an amenable number.

223964536 is a deficient number, since it is larger than the sum of its proper divisors (195968984).

223964536 is a wasteful number, since it uses less digits than its factorization.

223964536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27995573 (or 27995569 counting only the distinct ones).

The product of its digits is 233280, while the sum is 40.

The square root of 223964536 is about 14965.4447311131. Note that the first 3 decimals coincide. The cubic root of 223964536 is about 607.2857422100.

The spelling of 223964536 in words is "two hundred twenty-three million, nine hundred sixty-four thousand, five hundred thirty-six".