38455400 has 48 divisors (see below), whose sum is σ = 91333440. Its totient is φ = 15051200.

The previous prime is 38455397. The next prime is 38455409. The reversal of 38455400 is 455483.

It is not an unprimeable number, because it can be changed into a prime (38455409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7355 + ... + 11445.

It is an arithmetic number, because the mean of its divisors is an integer number (1902780).

Almost surely, 2^38455400 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 38455400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45666720).

38455400 is an abundant number, since it is smaller than the sum of its proper divisors (52878040).

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

38455400 is a wasteful number, since it uses less digits than its factorization.

38455400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154 (or 4145 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 38455400 is about 6201.2418111214. The cubic root of 38455400 is about 337.5352318044.

The spelling of 38455400 in words is "thirty-eight million, four hundred fifty-five thousand, four hundred".