4189248391 has 4 divisors (see below), whose sum is σ = 4189512672. Its totient is φ = 4188984112.

The previous prime is 4189248347. The next prime is 4189248433. The reversal of 4189248391 is 1938429814.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4189248391 - 2⁹ = 4189247879 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4189248191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106735 + ... + 140608.

It is an arithmetic number, because the mean of its divisors is an integer number (1047378168).

Almost surely, 2^4189248391 is an apocalyptic number.

4189248391 is a deficient number, since it is larger than the sum of its proper divisors (264281).

4189248391 is a wasteful number, since it uses less digits than its factorization.

4189248391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264280.

The product of its digits is 497664, while the sum is 49.

The square root of 4189248391 is about 64724.4033653459. The cubic root of 4189248391 is about 1612.0507271964.

The spelling of 4189248391 in words is "four billion, one hundred eighty-nine million, two hundred forty-eight thousand, three hundred ninety-one".