223196440 has 32 divisors (see below), whose sum is σ = 503992080. Its totient is φ = 88958592.

The previous prime is 223196431. The next prime is 223196443. The reversal of 223196440 is 44691322.

It is a happy number.

223196440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223196440³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223196443) 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, 1462 + ... + 21178.

Almost surely, 2^223196440 is an apocalyptic number.

223196440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223196440 is an abundant number, since it is smaller than the sum of its proper divisors (280795640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223196440 is a wasteful number, since it uses less digits than its factorization.

223196440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20011 (or 20007 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 223196440 is about 14939.7603729109. The cubic root of 223196440 is about 606.5907095392.

The spelling of 223196440 in words is "two hundred twenty-three million, one hundred ninety-six thousand, four hundred forty".