38642307 has 8 divisors (see below), whose sum is σ = 56207040. Its totient is φ = 23419560.

The previous prime is 38642299. The next prime is 38642311. The reversal of 38642307 is 70324683.

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

It is not a de Polignac number, because 38642307 - 2³ = 38642299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1170979 = 38642307 / (3 + 8 + 6 + 4 + 2 + 3 + 0 + 7).

It is not an unprimeable number, because it can be changed into a prime (38652307) 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, 585457 + ... + 585522.

It is an arithmetic number, because the mean of its divisors is an integer number (7025880).

Almost surely, 2^38642307 is an apocalyptic number.

38642307 is a deficient number, since it is larger than the sum of its proper divisors (17564733).

38642307 is a wasteful number, since it uses less digits than its factorization.

38642307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170993.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 38642307 is about 6216.2936706690. The cubic root of 38642307 is about 338.0811955535.

The spelling of 38642307 in words is "thirty-eight million, six hundred forty-two thousand, three hundred seven".