240220420220 has 24 divisors (see below), whose sum is σ = 550323145008. Its totient is φ = 87352880000.

The previous prime is 240220420211. The next prime is 240220420249. The reversal of 240220420220 is 22024022042.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 240220420192 and 240220420201.

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, 545955281 + ... + 545955720.

It is an arithmetic number, because the mean of its divisors is an integer number (22930131042).

Almost surely, 2^240220420220 is an apocalyptic number.

240220420220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240220420220 is an abundant number, since it is smaller than the sum of its proper divisors (310102724788).

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

240220420220 is a wasteful number, since it uses less digits than its factorization.

240220420220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091911021 (or 1091911019 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 240220420220 its reverse (22024022042), we get a palindrome (262244442262).

The spelling of 240220420220 in words is "two hundred forty billion, two hundred twenty million, four hundred twenty thousand, two hundred twenty".