2509490 has 8 divisors (see below), whose sum is σ = 4517100. Its totient is φ = 1003792.

The previous prime is 2509483. The next prime is 2509499. The reversal of 2509490 is 949052.

It can be written as a sum of positive squares in 2 ways, for example, as 2393209 + 116281 = 1547^2 + 341^2 .

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

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2509499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125465 + ... + 125484.

2^2509490 is an apocalyptic number.

2509490 is a deficient number, since it is larger than the sum of its proper divisors (2007610).

2509490 is a wasteful number, since it uses less digits than its factorization.

2509490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250956.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 2509490 is about 1584.1369890259. The cubic root of 2509490 is about 135.8923961430.

The spelling of 2509490 in words is "two million, five hundred nine thousand, four hundred ninety".