223819380 has 72 divisors (see below), whose sum is σ = 700836864. Its totient is φ = 57758400.

The previous prime is 223819367. The next prime is 223819381. The reversal of 223819380 is 83918322.

It is a happy number.

It is a super-2 number, since 2×223819380² = 100190229727168800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223819381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14476 + ... + 25635.

Almost surely, 2^223819380 is an apocalyptic number.

223819380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223819380 is an abundant number, since it is smaller than the sum of its proper divisors (477017484).

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

223819380 is a wasteful number, since it uses less digits than its factorization.

223819380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40157 (or 40152 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 223819380 is about 14960.5942395347. The cubic root of 223819380 is about 607.1545157491.

The spelling of 223819380 in words is "two hundred twenty-three million, eight hundred nineteen thousand, three hundred eighty".