2490545 has 8 divisors (see below), whose sum is σ = 3061800. Its totient is φ = 1943680.

The previous prime is 2490533. The next prime is 2490547. The reversal of 2490545 is 5450942.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 323761 + 2166784 = 569^2 + 1472^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2490545 - 2⁴ = 2490529 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5870 + ... + 6279.

It is an arithmetic number, because the mean of its divisors is an integer number (382725).

2^2490545 is an apocalyptic number.

It is an amenable number.

2490545 is a deficient number, since it is larger than the sum of its proper divisors (571255).

2490545 is a wasteful number, since it uses less digits than its factorization.

2490545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12195.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2490545 is about 1578.1460642159. The cubic root of 2490545 is about 135.5495658864.

The spelling of 2490545 in words is "two million, four hundred ninety thousand, five hundred forty-five".