24402001540 has 96 divisors (see below), whose sum is σ = 60512256000. Its totient is φ = 8088716160.

The previous prime is 24402001517. The next prime is 24402001669. The reversal of 24402001540 is 4510020442.

It is a happy 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, 6069651 + ... + 6073669.

It is an arithmetic number, because the mean of its divisors is an integer number (630336000).

Almost surely, 2^24402001540 is an apocalyptic number.

24402001540 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 24402001540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30256128000).

24402001540 is an abundant number, since it is smaller than the sum of its proper divisors (36110254460).

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

24402001540 is a wasteful number, since it uses less digits than its factorization.

24402001540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465 (or 5463 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 24402001540 its reverse (4510020442), we get a palindrome (28912021982).

The spelling of 24402001540 in words is "twenty-four billion, four hundred two million, one thousand, five hundred forty".