38707128 has 24 divisors (see below), whose sum is σ = 104832000. Its totient is φ = 12902352.

The previous prime is 38707111. The next prime is 38707153. The reversal of 38707128 is 82170783.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 38707092 and 38707101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 268728 + ... + 268871.

It is an arithmetic number, because the mean of its divisors is an integer number (4368000).

Almost surely, 2^38707128 is an apocalyptic number.

It is an amenable number.

38707128 is an abundant number, since it is smaller than the sum of its proper divisors (66124872).

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

38707128 is a wasteful number, since it uses less digits than its factorization.

38707128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537611 (or 537604 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 38707128 is about 6221.5052840932. The cubic root of 38707128 is about 338.2701293980.

The spelling of 38707128 in words is "thirty-eight million, seven hundred seven thousand, one hundred twenty-eight".