38742005 has 8 divisors (see below), whose sum is σ = 48511872. Its totient is φ = 29645968.

The previous prime is 38742001. The next prime is 38742019. The reversal of 38742005 is 50024783.

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 38742005 - 2² = 38742001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38742001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168329 + ... + 168558.

It is an arithmetic number, because the mean of its divisors is an integer number (6063984).

Almost surely, 2^38742005 is an apocalyptic number.

It is an amenable number.

38742005 is a deficient number, since it is larger than the sum of its proper divisors (9769867).

38742005 is a wasteful number, since it uses less digits than its factorization.

38742005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336915.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 38742005 is about 6224.3075920137. The cubic root of 38742005 is about 338.3716981633.

Adding to 38742005 its reverse (50024783), we get a palindrome (88766788).

The spelling of 38742005 in words is "thirty-eight million, seven hundred forty-two thousand, five".