2639246 has 4 divisors (see below), whose sum is σ = 3958872. Its totient is φ = 1319622.

The previous prime is 2639239. The next prime is 2639251. The reversal of 2639246 is 6429362.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6429362 = 2 ⋅3214681.

It is a d-powerful number, because it can be written as 2¹⁹ + 6² + 3⁴ + 9 + 2²¹ + 4⁷ + 6⁴ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659810 + ... + 659813.

It is an arithmetic number, because the mean of its divisors is an integer number (989718).

2^2639246 is an apocalyptic number.

2639246 is a deficient number, since it is larger than the sum of its proper divisors (1319626).

2639246 is a wasteful number, since it uses less digits than its factorization.

2639246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319625.

The product of its digits is 15552, while the sum is 32.

The square root of 2639246 is about 1624.5756368972. The cubic root of 2639246 is about 138.1953056223.

The spelling of 2639246 in words is "two million, six hundred thirty-nine thousand, two hundred forty-six".