220024040 has 32 divisors (see below), whose sum is σ = 507132360. Its totient is φ = 85862400.

The previous prime is 220024027. The next prime is 220024043. The reversal of 220024040 is 40420022.

It is a happy number.

220024040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 92198404 + 127825636 = 9602^2 + 11306^2 .

It is not an unprimeable number, because it can be changed into a prime (220024043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65441 + ... + 68720.

Almost surely, 2^220024040 is an apocalyptic number.

220024040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220024040 is an abundant number, since it is smaller than the sum of its proper divisors (287108320).

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

220024040 is a wasteful number, since it uses less digits than its factorization.

220024040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134213 (or 134209 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 220024040 is about 14833.2073402889. The cubic root of 220024040 is about 603.7030615047.

Adding to 220024040 its reverse (40420022), we get a palindrome (260444062).

The spelling of 220024040 in words is "two hundred twenty million, twenty-four thousand, forty".