38661745 has 8 divisors (see below), whose sum is σ = 46430784. Its totient is φ = 30904944.

The previous prime is 38661737. The next prime is 38661761. The reversal of 38661745 is 54716683.

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 38661745 - 2³ = 38661737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38661698 and 38661707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6772 + ... + 11098.

It is an arithmetic number, because the mean of its divisors is an integer number (5803848).

Almost surely, 2^38661745 is an apocalyptic number.

It is an amenable number.

38661745 is a deficient number, since it is larger than the sum of its proper divisors (7769039).

38661745 is a wasteful number, since it uses less digits than its factorization.

38661745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119.

The product of its digits is 120960, while the sum is 40.

The square root of 38661745 is about 6217.8569459260. The cubic root of 38661745 is about 338.1378736800.

The spelling of 38661745 in words is "thirty-eight million, six hundred sixty-one thousand, seven hundred forty-five".