2639252 has 72 divisors (see below), whose sum is σ = 6256320. Its totient is φ = 950400.

The previous prime is 2639251. The next prime is 2639291. The reversal of 2639252 is 2529362.

2639252 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2639252² = 13931302239008, which contains 22 as substring.

Its product of digits (6480) is a multiple of the sum of its prime divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64352 + ... + 64392.

2^2639252 is an apocalyptic number.

2639252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2639252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3128160).

2639252 is an abundant number, since it is smaller than the sum of its proper divisors (3617068).

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

2639252 is a wasteful number, since it uses less digits than its factorization.

2639252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 80 counting only the distinct ones).

The product of its digits is 6480, while the sum is 29.

The square root of 2639252 is about 1624.5774835323. The cubic root of 2639252 is about 138.1954103456.

The spelling of 2639252 in words is "two million, six hundred thirty-nine thousand, two hundred fifty-two".