38340642 has 8 divisors (see below), whose sum is σ = 76681296. Its totient is φ = 12780212.

The previous prime is 38340637. The next prime is 38340647. The reversal of 38340642 is 24604383.

It is an interprime number because it is at equal distance from previous prime (38340637) and next prime (38340647).

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

38340642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (38340647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3195048 + ... + 3195059.

It is an arithmetic number, because the mean of its divisors is an integer number (9585162).

Almost surely, 2^38340642 is an apocalyptic number.

38340642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38340642 is a wasteful number, since it uses less digits than its factorization.

38340642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6390112.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 38340642 is about 6191.9820736175. The cubic root of 38340642 is about 337.1991414868.

The spelling of 38340642 in words is "thirty-eight million, three hundred forty thousand, six hundred forty-two".