6279138 has 48 divisors (see below), whose sum is σ = 14713920. Its totient is φ = 1929312.

The previous prime is 6279131. The next prime is 6279151. The reversal of 6279138 is 8319726.

It is not an unprimeable number, because it can be changed into a prime (6279131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11745 + ... + 12267.

It is an arithmetic number, because the mean of its divisors is an integer number (306540).

Almost surely, 2^6279138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6279138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7356960).

6279138 is an abundant number, since it is smaller than the sum of its proper divisors (8434782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6279138 is a wasteful number, since it uses less digits than its factorization.

6279138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583 (or 580 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 6279138 is about 2505.8208236025. The cubic root of 6279138 is about 184.4873853935.

The spelling of 6279138 in words is "six million, two hundred seventy-nine thousand, one hundred thirty-eight".