2639285 has 16 divisors (see below), whose sum is σ = 3532032. Its totient is φ = 1876800.

The previous prime is 2639251. The next prime is 2639291. The reversal of 2639285 is 5829362.

It is not a de Polignac number, because 2639285 - 2¹² = 2635189 is a prime.

It is a super-2 number, since 2×2639285² = 13931650622450, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁴ + 6⁷ + 3 + 9 + 2²¹ + 8⁶ + 5² .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2075 + ... + 3095.

It is an arithmetic number, because the mean of its divisors is an integer number (220752).

2^2639285 is an apocalyptic number.

It is an amenable number.

2639285 is a deficient number, since it is larger than the sum of its proper divisors (892747).

2639285 is a wasteful number, since it uses less digits than its factorization.

2639285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084.

The product of its digits is 25920, while the sum is 35.

The square root of 2639285 is about 1624.5876399875. The cubic root of 2639285 is about 138.1959863206.

The spelling of 2639285 in words is "two million, six hundred thirty-nine thousand, two hundred eighty-five".