38828157 has 16 divisors (see below), whose sum is σ = 53084160. Its totient is φ = 25233392.

The previous prime is 38828131. The next prime is 38828177. The reversal of 38828157 is 75182883.

It is a happy number.

38828157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 38828157 - 2⁷ = 38828029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38828177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53644 + ... + 54362.

It is an arithmetic number, because the mean of its divisors is an integer number (3317760).

Almost surely, 2^38828157 is an apocalyptic number.

It is an amenable number.

38828157 is a deficient number, since it is larger than the sum of its proper divisors (14256003).

38828157 is a wasteful number, since it uses less digits than its factorization.

38828157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152.

The product of its digits is 107520, while the sum is 42.

The square root of 38828157 is about 6231.2243580215. The cubic root of 38828157 is about 338.6223289438.

The spelling of 38828157 in words is "thirty-eight million, eight hundred twenty-eight thousand, one hundred fifty-seven".