38438667 has 24 divisors (see below), whose sum is σ = 57627648. Its totient is φ = 24663600.

The previous prime is 38438663. The next prime is 38438669. The reversal of 38438667 is 76683483.

It is not a de Polignac number, because 38438667 - 2² = 38438663 is a prime.

It is a super-2 number, since 2×38438667² = 2955062241473778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38438663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86548 + ... + 86990.

It is an arithmetic number, because the mean of its divisors is an integer number (2401152).

Almost surely, 2^38438667 is an apocalyptic number.

38438667 is a deficient number, since it is larger than the sum of its proper divisors (19188981).

38438667 is a wasteful number, since it uses less digits than its factorization.

38438667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791 (or 788 counting only the distinct ones).

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

The square root of 38438667 is about 6199.8924990680. The cubic root of 38438667 is about 337.4862677540.

The spelling of 38438667 in words is "thirty-eight million, four hundred thirty-eight thousand, six hundred sixty-seven".