2639232 has 96 divisors (see below), whose sum is σ = 7956000. Its totient is φ = 838656.

The previous prime is 2639213. The next prime is 2639239. The reversal of 2639232 is 2329362.

2639232 is a `hidden beast` number, since 2 + 639 + 23 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2639196 and 2639205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33369 + ... + 33447.

It is an arithmetic number, because the mean of its divisors is an integer number (82875).

2^2639232 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 2639232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3978000).

2639232 is an abundant number, since it is smaller than the sum of its proper divisors (5316768).

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

2639232 is a wasteful number, since it uses less digits than its factorization.

2639232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 113 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 2639232 is about 1624.5713280740. The cubic root of 2639232 is about 138.1950612675.

The spelling of 2639232 in words is "two million, six hundred thirty-nine thousand, two hundred thirty-two".