2043490 has 16 divisors (see below), whose sum is σ = 3701880. Its totient is φ = 812160.

The previous prime is 2043487. The next prime is 2043491. The reversal of 2043490 is 943402.

It can be written as a sum of positive squares in 4 ways, for example, as 508369 + 1535121 = 713^2 + 1239^2 .

It is not an unprimeable number, because it can be changed into a prime (2043491) 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, 1246 + ... + 2374.

2^2043490 is an apocalyptic number.

2043490 is a deficient number, since it is larger than the sum of its proper divisors (1658390).

2043490 is a wasteful number, since it uses less digits than its factorization.

2043490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2043490 is about 1429.5069079931. The cubic root of 2043490 is about 126.8987971734.

Adding to 2043490 its reverse (943402), we get a palindrome (2986892).

The spelling of 2043490 in words is "two million, forty-three thousand, four hundred ninety".