223479840 has 96 divisors (see below), whose sum is σ = 714571200. Its totient is φ = 58696704.

The previous prime is 223479833. The next prime is 223479847. The reversal of 223479840 is 48974322.

It is an interprime number because it is at equal distance from previous prime (223479833) and next prime (223479847).

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (223479847) 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, 28686 + ... + 35634.

It is an arithmetic number, because the mean of its divisors is an integer number (7443450).

Almost surely, 2^223479840 is an apocalyptic number.

223479840 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 223479840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357285600).

223479840 is an abundant number, since it is smaller than the sum of its proper divisors (491091360).

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

223479840 is a wasteful number, since it uses less digits than its factorization.

223479840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7034 (or 7026 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 223479840 is about 14949.2421212582. The cubic root of 223479840 is about 606.8473371380.

The spelling of 223479840 in words is "two hundred twenty-three million, four hundred seventy-nine thousand, eight hundred forty".