1225868 has 12 divisors (see below), whose sum is σ = 2451792. Its totient is φ = 525360.

The previous prime is 1225849. The next prime is 1225871. The reversal of 1225868 is 8685221.

1225868 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 21863 + ... + 21918.

It is an arithmetic number, because the mean of its divisors is an integer number (204316).

2^1225868 is an apocalyptic number.

It is an amenable number.

1225868 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.

1225868 is a wasteful number, since it uses less digits than its factorization.

1225868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43792 (or 43790 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 1225868 is about 1107.1892340517. The cubic root of 1225868 is about 107.0240141751.

The spelling of 1225868 in words is "one million, two hundred twenty-five thousand, eight hundred sixty-eight".