38428039144 has 128 divisors (see below), whose sum is σ = 83970633600. Its totient is φ = 16303472640.

The previous prime is 38428039129. The next prime is 38428039189. The reversal of 38428039144 is 44193082483.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 38428039094 and 38428039103.

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, 50763214 + ... + 50763970.

It is an arithmetic number, because the mean of its divisors is an integer number (656020575).

Almost surely, 2^38428039144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38428039144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41985316800).

38428039144 is an abundant number, since it is smaller than the sum of its proper divisors (45542594456).

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

38428039144 is a wasteful number, since it uses less digits than its factorization.

38428039144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 38428039144 in words is "thirty-eight billion, four hundred twenty-eight million, thirty-nine thousand, one hundred forty-four".