20242423140 has 48 divisors (see below), whose sum is σ = 57229081728. Its totient is φ = 5345570304.

The previous prime is 20242423111. The next prime is 20242423153. The reversal of 20242423140 is 4132424202.

It is a self number, because there is not a number n which added to its sum of digits gives 20242423140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1631557 + ... + 1643916.

It is an arithmetic number, because the mean of its divisors is an integer number (1192272536).

Almost surely, 2^20242423140 is an apocalyptic number.

20242423140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20242423140 is an abundant number, since it is smaller than the sum of its proper divisors (36986658588).

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

20242423140 is a wasteful number, since it uses less digits than its factorization.

20242423140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275588 (or 3275586 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20242423140 its reverse (4132424202), we get a palindrome (24374847342).

The spelling of 20242423140 in words is "twenty billion, two hundred forty-two million, four hundred twenty-three thousand, one hundred forty".