38398272 has 56 divisors (see below), whose sum is σ = 110837472. Its totient is φ = 11635200.

The previous prime is 38398253. The next prime is 38398273. The reversal of 38398272 is 27289383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38398273) 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, 6979 + ... + 11202.

Almost surely, 2^38398272 is an apocalyptic number.

38398272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38398272 is an abundant number, since it is smaller than the sum of its proper divisors (72439200).

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

38398272 is a wasteful number, since it uses less digits than its factorization.

38398272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18207 (or 18197 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 38398272 is about 6196.6339249628. The cubic root of 38398272 is about 337.3680054488.

Subtracting from 38398272 its reverse (27289383), we obtain a square (11108889 = 3333²).

The spelling of 38398272 in words is "thirty-eight million, three hundred ninety-eight thousand, two hundred seventy-two".