24220220240 has 40 divisors (see below), whose sum is σ = 56339055528. Its totient is φ = 9683435520.

The previous prime is 24220220231. The next prime is 24220220243. The reversal of 24220220240 is 4202202242.

It can be written as a sum of positive squares in 4 ways, for example, as 5125696 + 24215094544 = 2264^2 + 155612^2 .

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

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24220220243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97400 + ... + 240680.

Almost surely, 2^24220220240 is an apocalyptic number.

24220220240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24220220240 is an abundant number, since it is smaller than the sum of its proper divisors (32118835288).

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

24220220240 is a wasteful number, since it uses less digits than its factorization.

24220220240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145407 (or 145401 counting only the distinct ones).

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

Adding to 24220220240 its reverse (4202202242), we get a palindrome (28422422482).

It can be divided in two parts, 242202202 and 40, that added together give a palindrome (242202242).

The spelling of 24220220240 in words is "twenty-four billion, two hundred twenty million, two hundred twenty thousand, two hundred forty".