38149871 has 8 divisors (see below), whose sum is σ = 39857664. Its totient is φ = 36471960.

The previous prime is 38149841. The next prime is 38149879. The reversal of 38149871 is 17894183.

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 38149871 - 2¹⁸ = 37887727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38149879) 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, 4841 + ... + 9986.

It is an arithmetic number, because the mean of its divisors is an integer number (4982208).

Almost surely, 2^38149871 is an apocalyptic number.

38149871 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

38149871 is a deficient number, since it is larger than the sum of its proper divisors (1707793).

38149871 is a wasteful number, since it uses less digits than its factorization.

38149871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14941.

The product of its digits is 48384, while the sum is 41.

The square root of 38149871 is about 6176.5581839727. The cubic root of 38149871 is about 336.6389456420.

The spelling of 38149871 in words is "thirty-eight million, one hundred forty-nine thousand, eight hundred seventy-one".