2487840 has 96 divisors (see below), whose sum is σ = 8055936. Its totient is φ = 645120.

The previous prime is 2487833. The next prime is 2487883. The reversal of 2487840 is 487842.

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

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, 34044 + ... + 34116.

It is an arithmetic number, because the mean of its divisors is an integer number (83916).

2^2487840 is an apocalyptic number.

2487840 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 2487840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4027968).

2487840 is an abundant number, since it is smaller than the sum of its proper divisors (5568096).

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

2487840 is a wasteful number, since it uses less digits than its factorization.

2487840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 2487840 is about 1577.2888131221. The cubic root of 2487840 is about 135.5004743020.

The spelling of 2487840 in words is "two million, four hundred eighty-seven thousand, eight hundred forty".