38149867 has 8 divisors (see below), whose sum is σ = 44251136. Its totient is φ = 32211432.

The previous prime is 38149841. The next prime is 38149879. The reversal of 38149867 is 76894183.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 38149867 - 2¹⁹ = 37625579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38149367) 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, 40203 + ... + 41140.

It is an arithmetic number, because the mean of its divisors is an integer number (5531392).

Almost surely, 2^38149867 is an apocalyptic number.

38149867 is a deficient number, since it is larger than the sum of its proper divisors (6101269).

38149867 is an equidigital number, since it uses as much as digits as its factorization.

38149867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81417.

The product of its digits is 290304, while the sum is 46.

The square root of 38149867 is about 6176.5578601677. The cubic root of 38149867 is about 336.6389338765.

The spelling of 38149867 in words is "thirty-eight million, one hundred forty-nine thousand, eight hundred sixty-seven".