2643252 has 48 divisors (see below), whose sum is σ = 6582912. Its totient is φ = 823680.

The previous prime is 2643247. The next prime is 2643283. The reversal of 2643252 is 2523462.

It is a super-2 number, since 2×2643252² = 13973562271008, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2 + 6 + 4³ + 3¹³ + 2⁸ + 5² + 2²⁰ .

2643252 is an undulating number in base 13.

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, 16758 + ... + 16914.

It is an arithmetic number, because the mean of its divisors is an integer number (137144).

2^2643252 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 2643252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3291456).

2643252 is an abundant number, since it is smaller than the sum of its proper divisors (3939660).

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

2643252 is a wasteful number, since it uses less digits than its factorization.

2643252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 246 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 2643252 is about 1625.8081067580. The cubic root of 2643252 is about 138.2651905478.

The spelling of 2643252 in words is "two million, six hundred forty-three thousand, two hundred fifty-two".