223403940 has 48 divisors (see below), whose sum is σ = 695036160. Its totient is φ = 59574240.

The previous prime is 223403911. The next prime is 223403941. The reversal of 223403940 is 49304322.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (223403941) 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, 206316 + ... + 207395.

It is an arithmetic number, because the mean of its divisors is an integer number (14479920).

Almost surely, 2^223403940 is an apocalyptic number.

223403940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223403940 is an abundant number, since it is smaller than the sum of its proper divisors (471632220).

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

223403940 is a wasteful number, since it uses less digits than its factorization.

223403940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413729 (or 413721 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 223403940 is about 14946.7033154472. The cubic root of 223403940 is about 606.7786285865.

The spelling of 223403940 in words is "two hundred twenty-three million, four hundred three thousand, nine hundred forty".