1224858 has 8 divisors (see below), whose sum is σ = 2449728. Its totient is φ = 408284.

The previous prime is 1224857. The next prime is 1224859. The reversal of 1224858 is 8584221.

It is an interprime number because it is at equal distance from previous prime (1224857) and next prime (1224859).

It is a sphenic number, since it is the product of 3 distinct primes.

1224858 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1224851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102066 + ... + 102077.

It is an arithmetic number, because the mean of its divisors is an integer number (306216).

2^1224858 is an apocalyptic number.

1224858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1224858 is a wasteful number, since it uses less digits than its factorization.

1224858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204148.

The product of its digits is 5120, while the sum is 30.

The square root of 1224858 is about 1106.7330301387. The cubic root of 1224858 is about 106.9946135234.

The spelling of 1224858 in words is "one million, two hundred twenty-four thousand, eight hundred fifty-eight".