1040258 has 4 divisors (see below), whose sum is σ = 1560390. Its totient is φ = 520128.

The previous prime is 1040227. The next prime is 1040311. The reversal of 1040258 is 8520401.

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

It can be written as a sum of positive squares in only one way, i.e., 734449 + 305809 = 857^2 + 553^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260063 + ... + 260066.

2^1040258 is an apocalyptic number.

1040258 is a deficient number, since it is larger than the sum of its proper divisors (520132).

1040258 is an equidigital number, since it uses as much as digits as its factorization.

1040258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520131.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1040258 is about 1019.9303897816. The cubic root of 1040258 is about 101.3243177382.

Adding to 1040258 its reverse (8520401), we get a palindrome (9560659).

The spelling of 1040258 in words is "one million, forty thousand, two hundred fifty-eight".