2639532 has 54 divisors (see below), whose sum is σ = 7272972. Its totient is φ = 742896.

The previous prime is 2639521. The next prime is 2639561. The reversal of 2639532 is 2359362.

It is a d-powerful number, because it can be written as 2 + 6⁵ + 3³ + 9 + 5⁵ + 3¹² + 2²¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 2639532.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 39363 + ... + 39429.

2^2639532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2639532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3636486).

2639532 is an abundant number, since it is smaller than the sum of its proper divisors (4633440).

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

2639532 is a wasteful number, since it uses less digits than its factorization.

2639532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 79 counting only the distinct ones).

The product of its digits is 9720, while the sum is 30.

The square root of 2639532 is about 1624.6636574996. The cubic root of 2639532 is about 138.2002972538.

The spelling of 2639532 in words is "two million, six hundred thirty-nine thousand, five hundred thirty-two".