6538438 has 8 divisors (see below), whose sum is σ = 10384632. Its totient is φ = 3076896.

The previous prime is 6538429. The next prime is 6538447. The reversal of 6538438 is 8348356.

It is an interprime number because it is at equal distance from previous prime (6538429) and next prime (6538447).

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

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 6538397 and 6538406.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 96120 + ... + 96187.

It is an arithmetic number, because the mean of its divisors is an integer number (1298079).

Almost surely, 2^6538438 is an apocalyptic number.

6538438 is a deficient number, since it is larger than the sum of its proper divisors (3846194).

6538438 is a wasteful number, since it uses less digits than its factorization.

6538438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192326.

The product of its digits is 69120, while the sum is 37.

The square root of 6538438 is about 2557.0369571048. The cubic root of 6538438 is about 186.9927075426.

It can be divided in two parts, 65 and 38438, that added together give a triangular number (38503 = T₂₇₇).

The spelling of 6538438 in words is "six million, five hundred thirty-eight thousand, four hundred thirty-eight".