20254400000 has 120 divisors (see below), whose sum is σ = 50587309080. Its totient is φ = 8101120000.

The previous prime is 20254399999. The next prime is 20254400003. The reversal of 20254400000 is 445202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20254400003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1593671 + ... + 1606329.

It is an arithmetic number, because the mean of its divisors is an integer number (421560909).

Almost surely, 2^20254400000 is an apocalyptic number.

20254400000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20254400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25293654540).

20254400000 is an abundant number, since it is smaller than the sum of its proper divisors (30332909080).

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

20254400000 is an frugal number, since it uses more digits than its factorization.

20254400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12702 (or 12666 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

Adding to 20254400000 its reverse (445202), we get a palindrome (20254845202).

The spelling of 20254400000 in words is "twenty billion, two hundred fifty-four million, four hundred thousand".