2490505 has 4 divisors (see below), whose sum is σ = 2988612. Its totient is φ = 1992400.

The previous prime is 2490497. The next prime is 2490529. The reversal of 2490505 is 5050942.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 692224 + 1798281 = 832^2 + 1341^2 .

It is not a de Polignac number, because 2490505 - 2³ = 2490497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2490505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249046 + ... + 249055.

It is an arithmetic number, because the mean of its divisors is an integer number (747153).

2^2490505 is an apocalyptic number.

It is an amenable number.

2490505 is a deficient number, since it is larger than the sum of its proper divisors (498107).

2490505 is an equidigital number, since it uses as much as digits as its factorization.

2490505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498106.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2490505 is about 1578.1333910668. The cubic root of 2490505 is about 135.5488402070.

The spelling of 2490505 in words is "two million, four hundred ninety thousand, five hundred five".