2452840 has 64 divisors (see below), whose sum is σ = 6123600. Its totient is φ = 878592.

The previous prime is 2452831. The next prime is 2452859. The reversal of 2452840 is 482542.

It is a happy number.

2452840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 498436 + 1954404 = 706^2 + 1398^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27516 + ... + 27604.

2^2452840 is an apocalyptic number.

2452840 is a gapful number since it is divisible by the number (20) 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 2452840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3061800).

2452840 is an abundant number, since it is smaller than the sum of its proper divisors (3670760).

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

2452840 is a wasteful number, since it uses less digits than its factorization.

2452840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 2452840 is about 1566.1545262202. The cubic root of 2452840 is about 134.8620447152.

The spelling of 2452840 in words is "two million, four hundred fifty-two thousand, eight hundred forty".