38147738 has 8 divisors (see below), whose sum is σ = 58439232. Its totient is φ = 18667996.

The previous prime is 38147737. The next prime is 38147743. The reversal of 38147738 is 83774183.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38147695 and 38147704.

It is not an unprimeable number, because it can be changed into a prime (38147737) 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 3 ways as a sum of consecutive naturals, for example, 202820 + ... + 203007.

It is an arithmetic number, because the mean of its divisors is an integer number (7304904).

Almost surely, 2^38147738 is an apocalyptic number.

38147738 is a deficient number, since it is larger than the sum of its proper divisors (20291494).

38147738 is a wasteful number, since it uses less digits than its factorization.

38147738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405876.

The product of its digits is 112896, while the sum is 41.

The square root of 38147738 is about 6176.3855125793. The cubic root of 38147738 is about 336.6326715775.

The spelling of 38147738 in words is "thirty-eight million, one hundred forty-seven thousand, seven hundred thirty-eight".