38728958 has 8 divisors (see below), whose sum is σ = 61510752. Its totient is φ = 18225376.

The previous prime is 38728931. The next prime is 38728979. The reversal of 38728958 is 85982783.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569510 + ... + 569577.

It is an arithmetic number, because the mean of its divisors is an integer number (7688844).

Almost surely, 2^38728958 is an apocalyptic number.

38728958 is a deficient number, since it is larger than the sum of its proper divisors (22781794).

38728958 is a wasteful number, since it uses less digits than its factorization.

38728958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139106.

The product of its digits is 967680, while the sum is 50.

The square root of 38728958 is about 6223.2594353763. The cubic root of 38728958 is about 338.3337098418. Note that the first 3 decimals are identical.

The spelling of 38728958 in words is "thirty-eight million, seven hundred twenty-eight thousand, nine hundred fifty-eight".