20244242340 has 72 divisors (see below), whose sum is σ = 70180044480. Its totient is φ = 4627255104.

The previous prime is 20244242323. The next prime is 20244242351. The reversal of 20244242340 is 4324244202.

20244242340 is a `hidden beast` number, since 2 + 0 + 2 + 4 + 424 + 234 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8032170 + ... + 8034689.

It is an arithmetic number, because the mean of its divisors is an integer number (974722840).

Almost surely, 2^20244242340 is an apocalyptic number.

20244242340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20244242340 is an abundant number, since it is smaller than the sum of its proper divisors (49935802140).

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

20244242340 is a wasteful number, since it uses less digits than its factorization.

20244242340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16066881 (or 16066876 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 20244242340 its reverse (4324244202), we get a palindrome (24568486542).

The spelling of 20244242340 in words is "twenty billion, two hundred forty-four million, two hundred forty-two thousand, three hundred forty".