1258868 has 24 divisors (see below), whose sum is σ = 2431968. Its totient is φ = 566496.

The previous prime is 1258847. The next prime is 1258871. The reversal of 1258868 is 8688521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1955 + ... + 2517.

It is an arithmetic number, because the mean of its divisors is an integer number (101332).

2^1258868 is an apocalyptic number.

It is an amenable number.

1258868 is a deficient number, since it is larger than the sum of its proper divisors (1173100).

1258868 is a wasteful number, since it uses less digits than its factorization.

1258868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 621 counting only the distinct ones).

The product of its digits is 30720, while the sum is 38.

The square root of 1258868 is about 1121.9928698526. The cubic root of 1258868 is about 107.9758748125.

The spelling of 1258868 in words is "one million, two hundred fifty-eight thousand, eight hundred sixty-eight".