223049940 has 24 divisors (see below), whose sum is σ = 624540000. Its totient is φ = 59479968.

The previous prime is 223049927. The next prime is 223049947. The reversal of 223049940 is 49940322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223049947) 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, 1858690 + ... + 1858809.

It is an arithmetic number, because the mean of its divisors is an integer number (26022500).

Almost surely, 2^223049940 is an apocalyptic number.

223049940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223049940 is an abundant number, since it is smaller than the sum of its proper divisors (401490060).

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

223049940 is a wasteful number, since it uses less digits than its factorization.

223049940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3717511 (or 3717509 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 223049940 is about 14934.8565443395. The cubic root of 223049940 is about 606.4579640095.

The spelling of 223049940 in words is "two hundred twenty-three million, forty-nine thousand, nine hundred forty".