223021040 has 40 divisors (see below), whose sum is σ = 565664688. Its totient is φ = 81098240.

The previous prime is 223021033. The next prime is 223021061. The reversal of 223021040 is 40120322.

223021040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125837 + ... + 127596.

Almost surely, 2^223021040 is an apocalyptic number.

223021040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223021040 is an abundant number, since it is smaller than the sum of its proper divisors (342643648).

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

223021040 is a wasteful number, since it uses less digits than its factorization.

223021040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253457 (or 253451 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 223021040 is about 14933.8889777579. Note that the first 3 decimals coincide. The cubic root of 223021040 is about 606.4317704850.

Adding to 223021040 its reverse (40120322), we get a palindrome (263141362).

The spelling of 223021040 in words is "two hundred twenty-three million, twenty-one thousand, forty".