20411425240 has 128 divisors (see below), whose sum is σ = 48135124800. Its totient is φ = 7782727680.

The previous prime is 20411425213. The next prime is 20411425253. The reversal of 20411425240 is 4252411402.

It is a super-4 number, since 4×20411425240⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18674134 + ... + 18675226.

Almost surely, 2^20411425240 is an apocalyptic number.

20411425240 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 20411425240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24067562400).

20411425240 is an abundant number, since it is smaller than the sum of its proper divisors (27723699560).

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

20411425240 is a wasteful number, since it uses less digits than its factorization.

20411425240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1393 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 20411425240 its reverse (4252411402), we get a palindrome (24663836642).

The spelling of 20411425240 in words is "twenty billion, four hundred eleven million, four hundred twenty-five thousand, two hundred forty".