38638467 has 48 divisors (see below), whose sum is σ = 69189120. Its totient is φ = 20272896.

The previous prime is 38638463. The next prime is 38638477. The reversal of 38638467 is 76483683.

38638467 is a `hidden beast` number, since 3 + 8 + 638 + 4 + 6 + 7 = 666.

It is not a de Polignac number, because 38638467 - 2² = 38638463 is a prime.

It is a super-2 number, since 2×38638467² = 2985862264220178, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (38638463) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45634 + ... + 46472.

It is an arithmetic number, because the mean of its divisors is an integer number (1441440).

Almost surely, 2^38638467 is an apocalyptic number.

38638467 is a deficient number, since it is larger than the sum of its proper divisors (30550653).

38638467 is a wasteful number, since it uses less digits than its factorization.

38638467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 909 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 38638467 is about 6215.9847972787. The cubic root of 38638467 is about 338.0699964741.

The spelling of 38638467 in words is "thirty-eight million, six hundred thirty-eight thousand, four hundred sixty-seven".