240013220 has 12 divisors (see below), whose sum is σ = 504027804. Its totient is φ = 96005280.

The previous prime is 240013217. The next prime is 240013231. The reversal of 240013220 is 22310042.

It can be written as a sum of positive squares in 2 ways, for example, as 74787904 + 165225316 = 8648^2 + 12854^2 .

It is a junction number, because it is equal to n+sod(n) for n = 240013195 and 240013204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6000311 + ... + 6000350.

It is an arithmetic number, because the mean of its divisors is an integer number (42002317).

Almost surely, 2^240013220 is an apocalyptic number.

240013220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240013220 is an abundant number, since it is smaller than the sum of its proper divisors (264014584).

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

240013220 is a wasteful number, since it uses less digits than its factorization.

240013220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12000670 (or 12000668 counting only the distinct ones).

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

The square root of 240013220 is about 15492.3600526195. The cubic root of 240013220 is about 621.4579114295.

Adding to 240013220 its reverse (22310042), we get a palindrome (262323262).

The spelling of 240013220 in words is "two hundred forty million, thirteen thousand, two hundred twenty".