38382729 has 32 divisors (see below), whose sum is σ = 65126400. Its totient is φ = 19933200.

The previous prime is 38382713. The next prime is 38382731. The reversal of 38382729 is 92728383.

It is not a de Polignac number, because 38382729 - 2⁴ = 38382713 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38382329) 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 31 ways as a sum of consecutive naturals, for example, 9624 + ... + 13014.

It is an arithmetic number, because the mean of its divisors is an integer number (2035200).

Almost surely, 2^38382729 is an apocalyptic number.

It is an amenable number.

38382729 is a deficient number, since it is larger than the sum of its proper divisors (26743671).

38382729 is a wasteful number, since it uses less digits than its factorization.

38382729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426 (or 3412 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 38382729 is about 6195.3796493839. The cubic root of 38382729 is about 337.3224789332.

The spelling of 38382729 in words is "thirty-eight million, three hundred eighty-two thousand, seven hundred twenty-nine".