38930191 has 8 divisors (see below), whose sum is σ = 40885344. Its totient is φ = 36996960.

The previous prime is 38930167. The next prime is 38930201. The reversal of 38930191 is 19103983.

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 38930191 - 2⁵ = 38930159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38930161) 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 7 ways as a sum of consecutive naturals, for example, 1780 + ... + 9001.

It is an arithmetic number, because the mean of its divisors is an integer number (5110668).

Almost surely, 2^38930191 is an apocalyptic number.

38930191 is a deficient number, since it is larger than the sum of its proper divisors (1955153).

38930191 is a wasteful number, since it uses less digits than its factorization.

38930191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10961.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 38930191 is about 6239.4063018848. The cubic root of 38930191 is about 338.9186840695.

The spelling of 38930191 in words is "thirty-eight million, nine hundred thirty thousand, one hundred ninety-one".