38897138 has 32 divisors (see below), whose sum is σ = 69662208. Its totient is φ = 15940800.

The previous prime is 38897113. The next prime is 38897141. The reversal of 38897138 is 83179883.

It is a junction number, because it is equal to n+sod(n) for n = 38897092 and 38897101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30983 + ... + 32213.

It is an arithmetic number, because the mean of its divisors is an integer number (2176944).

Almost surely, 2^38897138 is an apocalyptic number.

38897138 is a deficient number, since it is larger than the sum of its proper divisors (30765070).

38897138 is a wasteful number, since it uses less digits than its factorization.

38897138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338.

The product of its digits is 290304, while the sum is 47.

The square root of 38897138 is about 6236.7570098570. The cubic root of 38897138 is about 338.8227392441.

The spelling of 38897138 in words is "thirty-eight million, eight hundred ninety-seven thousand, one hundred thirty-eight".