223387420 has 12 divisors (see below), whose sum is σ = 469113624. Its totient is φ = 89354960.

The previous prime is 223387403. The next prime is 223387441. The reversal of 223387420 is 24783322.

223387420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5584666 + ... + 5584705.

It is an arithmetic number, because the mean of its divisors is an integer number (39092802).

Almost surely, 2^223387420 is an apocalyptic number.

223387420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223387420 is an abundant number, since it is smaller than the sum of its proper divisors (245726204).

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

223387420 is a wasteful number, since it uses less digits than its factorization.

223387420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11169380 (or 11169378 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 223387420 is about 14946.1506750066. The cubic root of 223387420 is about 606.7636717777.

The spelling of 223387420 in words is "two hundred twenty-three million, three hundred eighty-seven thousand, four hundred twenty".