38145538 has 8 divisors (see below), whose sum is σ = 57285900. Its totient is φ = 19050240.

The previous prime is 38145517. The next prime is 38145553. The reversal of 38145538 is 83554183.

It can be written as a sum of positive squares in 2 ways, for example, as 35964009 + 2181529 = 5997^2 + 1477^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 38145497 and 38145506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9063 + ... + 12586.

Almost surely, 2^38145538 is an apocalyptic number.

38145538 is a deficient number, since it is larger than the sum of its proper divisors (19140362).

38145538 is a wasteful number, since it uses less digits than its factorization.

38145538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22532.

The product of its digits is 57600, while the sum is 37.

The square root of 38145538 is about 6176.2074123203. The cubic root of 38145538 is about 336.6262001924.

It can be divided in two parts, 38145 and 538, that added together give a palindrome (38683).

The spelling of 38145538 in words is "thirty-eight million, one hundred forty-five thousand, five hundred thirty-eight".