1242258 has 32 divisors (see below), whose sum is σ = 2773440. Its totient is φ = 368640.

The previous prime is 1242251. The next prime is 1242271. The reversal of 1242258 is 8522421.

It is not an unprimeable number, because it can be changed into a prime (1242251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1618 + ... + 2258.

It is an arithmetic number, because the mean of its divisors is an integer number (86670).

2^1242258 is an apocalyptic number.

1242258 is an abundant number, since it is smaller than the sum of its proper divisors (1531182).

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

1242258 is a wasteful number, since it uses less digits than its factorization.

1242258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682.

The product of its digits is 1280, while the sum is 24.

The square root of 1242258 is about 1114.5662833587. The cubic root of 1242258 is about 107.4988786615.

Adding to 1242258 its reverse (8522421), we get a palindrome (9764679).

The spelling of 1242258 in words is "one million, two hundred forty-two thousand, two hundred fifty-eight".