38949999 has 8 divisors (see below), whose sum is σ = 56654592. Its totient is φ = 23606040.

The previous prime is 38949983. The next prime is 38950001. The reversal of 38949999 is 99994983.

38949999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 38949999 - 2⁴ = 38949983 is a prime.

38949999 is a modest number, since divided by 9999 gives 3894 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38949899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590119 + ... + 590184.

It is an arithmetic number, because the mean of its divisors is an integer number (7081824).

Almost surely, 2^38949999 is an apocalyptic number.

38949999 is a deficient number, since it is larger than the sum of its proper divisors (17704593).

38949999 is a wasteful number, since it uses less digits than its factorization.

38949999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180317.

The product of its digits is 5668704, while the sum is 60.

The square root of 38949999 is about 6240.9934305365. The cubic root of 38949999 is about 338.9761558572.

The spelling of 38949999 in words is "thirty-eight million, nine hundred forty-nine thousand, nine hundred ninety-nine".