2438172240 has 160 divisors (see below), whose sum is σ = 8839243776. Its totient is φ = 544320000.

The previous prime is 2438172229. The next prime is 2438172287. The reversal of 2438172240 is 422718342.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55365 + ... + 89115.

Almost surely, 2^2438172240 is an apocalyptic number.

2438172240 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 2438172240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4419621888).

2438172240 is an abundant number, since it is smaller than the sum of its proper divisors (6401071536).

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

2438172240 is a wasteful number, since it uses less digits than its factorization.

2438172240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33817 (or 33811 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 2438172240 is about 49377.8517151162. The cubic root of 2438172240 is about 1345.9268616789.

The spelling of 2438172240 in words is "two billion, four hundred thirty-eight million, one hundred seventy-two thousand, two hundred forty".