220013240 has 32 divisors (see below), whose sum is σ = 501817680. Its totient is φ = 86798592.

The previous prime is 220013221. The next prime is 220013243. The reversal of 220013240 is 42310022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220013243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34754 + ... + 40593.

Almost surely, 2^220013240 is an apocalyptic number.

220013240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220013240 is an abundant number, since it is smaller than the sum of its proper divisors (281804440).

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

220013240 is a wasteful number, since it uses less digits than its factorization.

220013240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75431 (or 75427 counting only the distinct ones).

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

The square root of 220013240 is about 14832.8432877854. The cubic root of 220013240 is about 603.6931836450.

Adding to 220013240 its reverse (42310022), we get a palindrome (262323262).

The spelling of 220013240 in words is "two hundred twenty million, thirteen thousand, two hundred forty".