38117431 has 8 divisors (see below), whose sum is σ = 41706000. Its totient is φ = 34549440.

The previous prime is 38117419. The next prime is 38117449. The reversal of 38117431 is 13471183.

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 38117431 - 2¹⁵ = 38084663 is a prime.

It is a super-2 number, since 2×38117431² = 2905877092079522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38117431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38117491) 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 7 ways as a sum of consecutive naturals, for example, 1126 + ... + 8803.

It is an arithmetic number, because the mean of its divisors is an integer number (5213250).

Almost surely, 2^38117431 is an apocalyptic number.

38117431 is a deficient number, since it is larger than the sum of its proper divisors (3588569).

38117431 is a wasteful number, since it uses less digits than its factorization.

38117431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10289.

The product of its digits is 2016, while the sum is 28.

The square root of 38117431 is about 6173.9315674860. The cubic root of 38117431 is about 336.5435004593.

The spelling of 38117431 in words is "thirty-eight million, one hundred seventeen thousand, four hundred thirty-one".