2438172520 has 64 divisors (see below), whose sum is σ = 6299452800. Its totient is φ = 831962880.

The previous prime is 2438172493. The next prime is 2438172547. The reversal of 2438172520 is 252718342.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2438172493) and next prime (2438172547).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38446 + ... + 79714.

It is an arithmetic number, because the mean of its divisors is an integer number (98428950).

Almost surely, 2^2438172520 is an apocalyptic number.

2438172520 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 2438172520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3149726400).

2438172520 is an abundant number, since it is smaller than the sum of its proper divisors (3861280280).

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

2438172520 is a wasteful number, since it uses less digits than its factorization.

2438172520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41498 (or 41494 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 2438172520 is about 49377.8545503954. The cubic root of 2438172520 is about 1345.9269132010.

The spelling of 2438172520 in words is "two billion, four hundred thirty-eight million, one hundred seventy-two thousand, five hundred twenty".