2485640 has 16 divisors (see below), whose sum is σ = 5592780. Its totient is φ = 994240.

The previous prime is 2485631. The next prime is 2485643. The reversal of 2485640 is 465842.

2485640 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 2 ways, for example, as 2439844 + 45796 = 1562^2 + 214^2 .

It is not an unprimeable number, because it can be changed into a prime (2485643) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 31031 + ... + 31110.

2^2485640 is an apocalyptic number.

2485640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2485640 is an abundant number, since it is smaller than the sum of its proper divisors (3107140).

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

2485640 is a wasteful number, since it uses less digits than its factorization.

2485640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62152 (or 62148 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 2485640 is about 1576.5912596485. The cubic root of 2485640 is about 135.4605214437.

It can be divided in two parts, 2485 and 640, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2485640 in words is "two million, four hundred eighty-five thousand, six hundred forty".