223454280 has 128 divisors (see below), whose sum is σ = 792633600. Its totient is φ = 49308672.

The previous prime is 223454267. The next prime is 223454281. The reversal of 223454280 is 82454322.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (223454281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19774 + ... + 28946.

It is an arithmetic number, because the mean of its divisors is an integer number (6192450).

Almost surely, 2^223454280 is an apocalyptic number.

223454280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223454280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396316800).

223454280 is an abundant number, since it is smaller than the sum of its proper divisors (569179320).

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

223454280 is a wasteful number, since it uses less digits than its factorization.

223454280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9223 (or 9219 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 223454280 is about 14948.3872039762. The cubic root of 223454280 is about 606.8242006598.

The spelling of 223454280 in words is "two hundred twenty-three million, four hundred fifty-four thousand, two hundred eighty".