38247681 has 8 divisors (see below), whose sum is σ = 51050944. Its totient is φ = 25471440.

The previous prime is 38247673. The next prime is 38247691. The reversal of 38247681 is 18674283.

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

It is not a de Polignac number, because 38247681 - 2³ = 38247673 is a prime.

It is a super-2 number, since 2×38247681² = 2925770203755522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38247641) 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, 3181 + ... + 9306.

It is an arithmetic number, because the mean of its divisors is an integer number (6381368).

Almost surely, 2^38247681 is an apocalyptic number.

It is an amenable number.

38247681 is a deficient number, since it is larger than the sum of its proper divisors (12803263).

38247681 is a wasteful number, since it uses less digits than its factorization.

38247681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13511.

The product of its digits is 64512, while the sum is 39.

The square root of 38247681 is about 6184.4709555466. The cubic root of 38247681 is about 336.9263957689.

The spelling of 38247681 in words is "thirty-eight million, two hundred forty-seven thousand, six hundred eighty-one".