38900421400 has 144 divisors (see below), whose sum is σ = 96349413600. Its totient is φ = 14603016960.

The previous prime is 38900421383. The next prime is 38900421403. The reversal of 38900421400 is 412400983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38900421403) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7867329 + ... + 7872271.

It is an arithmetic number, because the mean of its divisors is an integer number (669093150).

Almost surely, 2^38900421400 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 38900421400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48174706800).

38900421400 is an abundant number, since it is smaller than the sum of its proper divisors (57448992200).

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

38900421400 is a wasteful number, since it uses less digits than its factorization.

38900421400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5106 (or 5078 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 38900421400 in words is "thirty-eight billion, nine hundred million, four hundred twenty-one thousand, four hundred".