2685490 has 16 divisors (see below), whose sum is σ = 5118552. Its totient is φ = 1010944.

The previous prime is 2685481. The next prime is 2685509. The reversal of 2685490 is 945862.

It is a happy number.

2685490 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 4 ways, for example, as 2582449 + 103041 = 1607^2 + 321^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

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 7 ways as a sum of consecutive naturals, for example, 7729 + ... + 8068.

2^2685490 is an apocalyptic number.

2685490 is a deficient number, since it is larger than the sum of its proper divisors (2433062).

2685490 is a wasteful number, since it uses less digits than its factorization.

2685490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15821.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2685490 is about 1638.7464721549. The cubic root of 2685490 is about 138.9977744067.

The spelling of 2685490 in words is "two million, six hundred eighty-five thousand, four hundred ninety".