38949938 has 8 divisors (see below), whose sum is σ = 58668060. Its totient is φ = 19393920.

The previous prime is 38949917. The next prime is 38949947. The reversal of 38949938 is 83994983.

It can be written as a sum of positive squares in 2 ways, for example, as 36204289 + 2745649 = 6017^2 + 1657^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 38949938.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39923 + ... + 40886.

Almost surely, 2^38949938 is an apocalyptic number.

38949938 is a deficient number, since it is larger than the sum of its proper divisors (19718122).

38949938 is a wasteful number, since it uses less digits than its factorization.

38949938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81052.

The product of its digits is 1679616, while the sum is 53.

The square root of 38949938 is about 6240.9885434921. The cubic root of 38949938 is about 338.9759788991.

The spelling of 38949938 in words is "thirty-eight million, nine hundred forty-nine thousand, nine hundred thirty-eight".