24620772440 has 64 divisors (see below), whose sum is σ = 60559488000. Its totient is φ = 8934240640.

The previous prime is 24620772433. The next prime is 24620772469. The reversal of 24620772440 is 4427702642.

It is a junction number, because it is equal to n+sod(n) for n = 24620772394 and 24620772403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152351 + ... + 269169.

It is an arithmetic number, because the mean of its divisors is an integer number (946242000).

Almost surely, 2^24620772440 is an apocalyptic number.

24620772440 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 24620772440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30279744000).

24620772440 is an abundant number, since it is smaller than the sum of its proper divisors (35938715560).

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

24620772440 is a wasteful number, since it uses less digits than its factorization.

24620772440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117320 (or 117316 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 38.

The spelling of 24620772440 in words is "twenty-four billion, six hundred twenty million, seven hundred seventy-two thousand, four hundred forty".