1255628 has 12 divisors (see below), whose sum is σ = 2397192. Its totient is φ = 570720.

The previous prime is 1255619. The next prime is 1255633. The reversal of 1255628 is 8265521.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1255628.

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, 14225 + ... + 14312.

It is an arithmetic number, because the mean of its divisors is an integer number (199766).

2^1255628 is an apocalyptic number.

It is an amenable number.

1255628 is a deficient number, since it is larger than the sum of its proper divisors (1141564).

1255628 is a wasteful number, since it uses less digits than its factorization.

1255628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28552 (or 28550 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 1255628 is about 1120.5480801822. The cubic root of 1255628 is about 107.8831612533.

It can be divided in two parts, 1255 and 628, that multiplied together give a triangular number (788140 = T₁₂₅₅).

The spelling of 1255628 in words is "one million, two hundred fifty-five thousand, six hundred twenty-eight".