4038890351840 has 24 divisors (see below), whose sum is σ = 9541878456600. Its totient is φ = 1615556140672.

The previous prime is 4038890351803. The next prime is 4038890351849. The reversal of 4038890351840 is 481530988304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4038890351849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12621532190 + ... + 12621532509.

It is an arithmetic number, because the mean of its divisors is an integer number (397578269025).

Almost surely, 2^{4038890351840} is an apocalyptic number.

4038890351840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4038890351840 is an abundant number, since it is smaller than the sum of its proper divisors (5502988104760).

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

4038890351840 is a wasteful number, since it uses less digits than its factorization.

4038890351840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25243064714 (or 25243064706 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 4038890351840 in words is "four trillion, thirty-eight billion, eight hundred ninety million, three hundred fifty-one thousand, eight hundred forty".