2639284 has 24 divisors (see below), whose sum is σ = 5027400. Its totient is φ = 1207296.

The previous prime is 2639251. The next prime is 2639291. The reversal of 2639284 is 4829362.

It can be written as a sum of positive squares in 4 ways, for example, as 1882384 + 756900 = 1372^2 + 870^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a d-powerful number, because it can be written as 2⁵ + 6⁷ + 3 + 9 + 2²¹ + 8 + 4⁹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1992 + ... + 3040.

It is an arithmetic number, because the mean of its divisors is an integer number (209475).

2^2639284 is an apocalyptic number.

It is an amenable number.

2639284 is a deficient number, since it is larger than the sum of its proper divisors (2388116).

2639284 is a wasteful number, since it uses less digits than its factorization.

2639284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1105 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 2639284 is about 1624.5873322170. The cubic root of 2639284 is about 138.1959688669.

The spelling of 2639284 in words is "two million, six hundred thirty-nine thousand, two hundred eighty-four".