20254423360 has 56 divisors (see below), whose sum is σ = 48383235720. Its totient is φ = 8076171264.

The previous prime is 20254423307. The next prime is 20254423363. The reversal of 20254423360 is 6332445202.

It can be written as a sum of positive squares in 4 ways, for example, as 326019136 + 19928404224 = 18056^2 + 141168^2 .

It is a super-2 number, since 2×20254423360² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20254423363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1606 + ... + 201274.

Almost surely, 2^20254423360 is an apocalyptic number.

20254423360 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 20254423360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24191617860).

20254423360 is an abundant number, since it is smaller than the sum of its proper divisors (28128812360).

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

20254423360 is a wasteful number, since it uses less digits than its factorization.

20254423360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200003 (or 199993 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 20254423360 its reverse (6332445202), we get a palindrome (26586868562).

The spelling of 20254423360 in words is "twenty billion, two hundred fifty-four million, four hundred twenty-three thousand, three hundred sixty".