38045993 has 8 divisors (see below), whose sum is σ = 38675136. Its totient is φ = 37422000.

The previous prime is 38045981. The next prime is 38046031. The reversal of 38045993 is 39954083.

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

It is a cyclic number.

It is not a de Polignac number, because 38045993 - 2⁴ = 38045977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38045993.

It is not an unprimeable number, because it can be changed into a prime (38045093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15308 + ... + 17618.

It is an arithmetic number, because the mean of its divisors is an integer number (4834392).

Almost surely, 2^38045993 is an apocalyptic number.

It is an amenable number.

38045993 is a deficient number, since it is larger than the sum of its proper divisors (629143).

38045993 is a wasteful number, since it uses less digits than its factorization.

38045993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 38045993 is about 6168.1433997598. The cubic root of 38045993 is about 336.3331240069. Note that the first 3 decimals are identical.

The spelling of 38045993 in words is "thirty-eight million, forty-five thousand, nine hundred ninety-three".