38378028 has 96 divisors (see below), whose sum is σ = 101590720. Its totient is φ = 11197440.

The previous prime is 38377987. The next prime is 38378029. The reversal of 38378028 is 82087383.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (38378029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352038 + ... + 352146.

Almost surely, 2^38378028 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 38378028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50795360).

38378028 is an abundant number, since it is smaller than the sum of its proper divisors (63212692).

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

38378028 is a wasteful number, since it uses less digits than its factorization.

38378028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 38378028 is about 6195.0002421307. Note that the first 3 decimals coincide. The cubic root of 38378028 is about 337.3087069602.

The spelling of 38378028 in words is "thirty-eight million, three hundred seventy-eight thousand, twenty-eight".