1255404 has 24 divisors (see below), whose sum is σ = 2948400. Its totient is φ = 415744.

The previous prime is 1255393. The next prime is 1255421. The reversal of 1255404 is 4045521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2572 + ... + 3020.

It is an arithmetic number, because the mean of its divisors is an integer number (122850).

2^1255404 is an apocalyptic number.

It is an amenable number.

1255404 is an abundant number, since it is smaller than the sum of its proper divisors (1692996).

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

1255404 is a wasteful number, since it uses less digits than its factorization.

1255404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1255404 is about 1120.4481246359. The cubic root of 1255404 is about 107.8767455354.

The spelling of 1255404 in words is "one million, two hundred fifty-five thousand, four hundred four".