2481840 has 100 divisors (see below), whose sum is σ = 8642304. Its totient is φ = 660096.

The previous prime is 2481839. The next prime is 2481841. The reversal of 2481840 is 481842.

It is an interprime number because it is at equal distance from previous prime (2481839) and next prime (2481841).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2481841) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6289 + ... + 6671.

2^2481840 is an apocalyptic number.

2481840 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 2481840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4321152).

2481840 is an abundant number, since it is smaller than the sum of its proper divisors (6160464).

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

2481840 is a wasteful number, since it uses less digits than its factorization.

2481840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 2481840 is about 1575.3856670670. The cubic root of 2481840 is about 135.3914563983.

It can be divided in two parts, 2481 and 840, that added together give a triangular number (3321 = T₈₁).

The spelling of 2481840 in words is "two million, four hundred eighty-one thousand, eight hundred forty".