1258540 has 12 divisors (see below), whose sum is σ = 2642976. Its totient is φ = 503408.

The previous prime is 1258531. The next prime is 1258559. The reversal of 1258540 is 458521.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31444 + ... + 31483.

It is an arithmetic number, because the mean of its divisors is an integer number (220248).

2^1258540 is an apocalyptic number.

1258540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1258540 is an abundant number, since it is smaller than the sum of its proper divisors (1384436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1258540 is a wasteful number, since it uses less digits than its factorization.

1258540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62936 (or 62934 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1258540 is about 1121.8466918434. The cubic root of 1258540 is about 107.9664962376.

The spelling of 1258540 in words is "one million, two hundred fifty-eight thousand, five hundred forty".