4138287 has 8 divisors (see below), whose sum is σ = 5538480. Its totient is φ = 2748480.

The previous prime is 4138279. The next prime is 4138289. The reversal of 4138287 is 7828314.

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

It is not a de Polignac number, because 4138287 - 2³ = 4138279 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4138289) 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, 1612 + ... + 3297.

It is an arithmetic number, because the mean of its divisors is an integer number (692310).

Almost surely, 2^4138287 is an apocalyptic number.

4138287 is a deficient number, since it is larger than the sum of its proper divisors (1400193).

4138287 is a wasteful number, since it uses less digits than its factorization.

4138287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193.

The product of its digits is 10752, while the sum is 33.

The square root of 4138287 is about 2034.2780046002. The cubic root of 4138287 is about 160.5487279381.

The spelling of 4138287 in words is "four million, one hundred thirty-eight thousand, two hundred eighty-seven".