2538490 has 16 divisors (see below), whose sum is σ = 4618152. Its totient is φ = 1004544.

The previous prime is 2538479. The next prime is 2538493. The reversal of 2538490 is 948352.

It can be written as a sum of positive squares in 4 ways, for example, as 2461761 + 76729 = 1569^2 + 277^2 .

It is not an unprimeable number, because it can be changed into a prime (2538493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339 + ... + 2278.

2^2538490 is an apocalyptic number.

2538490 is a deficient number, since it is larger than the sum of its proper divisors (2079662).

2538490 is a wasteful number, since it uses less digits than its factorization.

2538490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2538490 is about 1593.2639454905. The cubic root of 2538490 is about 136.4138561157.

The spelling of 2538490 in words is "two million, five hundred thirty-eight thousand, four hundred ninety".