2739638 has 8 divisors (see below), whose sum is σ = 4483080. Its totient is φ = 1245280.

The previous prime is 2739637. The next prime is 2739643. The reversal of 2739638 is 8369372.

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

It is a d-powerful number, because it can be written as 2¹⁹ + 7⁶ + 3⁴ + 9 + 6³ + 3⁵ + 8⁷ .

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2739631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62243 + ... + 62286.

It is an arithmetic number, because the mean of its divisors is an integer number (560385).

2^2739638 is an apocalyptic number.

2739638 is a deficient number, since it is larger than the sum of its proper divisors (1743442).

2739638 is a wasteful number, since it uses less digits than its factorization.

2739638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124542.

The product of its digits is 54432, while the sum is 38.

The square root of 2739638 is about 1655.1851860139. The cubic root of 2739638 is about 139.9257769831.

The spelling of 2739638 in words is "two million, seven hundred thirty-nine thousand, six hundred thirty-eight".