2438902440 has 256 divisors, whose sum is σ = 8801049600. Its totient is φ = 597196800.

The previous prime is 2438902421. The next prime is 2438902447. The reversal of 2438902440 is 442098342.

It is a super-2 number, since 2×2438902440² = 11896490223675907200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2438902395 and 2438902404.

It is not an unprimeable number, because it can be changed into a prime (2438902447) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3804520 + ... + 3805160.

It is an arithmetic number, because the mean of its divisors is an integer number (34379100).

Almost surely, 2^2438902440 is an apocalyptic number.

2438902440 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 2438902440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4400524800).

2438902440 is an abundant number, since it is smaller than the sum of its proper divisors (6362147160).

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

2438902440 is a wasteful number, since it uses less digits than its factorization.

2438902440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 2438902440 is about 49385.2451649276. The cubic root of 2438902440 is about 1346.0612106368.

It can be divided in two parts, 2438902 and 440, that added together give a palindrome (2439342).

The spelling of 2438902440 in words is "two billion, four hundred thirty-eight million, nine hundred two thousand, four hundred forty".