38890128 has 40 divisors (see below), whose sum is σ = 102368448. Its totient is φ = 12717952.

The previous prime is 38890121. The next prime is 38890129. The reversal of 38890128 is 82109883.

It is not an unprimeable number, because it can be changed into a prime (38890121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5100 + ... + 10187.

Almost surely, 2^38890128 is an apocalyptic number.

It is an amenable number.

38890128 is an abundant number, since it is smaller than the sum of its proper divisors (63478320).

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

38890128 is a wasteful number, since it uses less digits than its factorization.

38890128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15351 (or 15345 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 38890128 is about 6236.1949937442. The cubic root of 38890128 is about 338.8023839325.

The spelling of 38890128 in words is "thirty-eight million, eight hundred ninety thousand, one hundred twenty-eight".