1255338 has 64 divisors (see below), whose sum is σ = 3306240. Its totient is φ = 349920.

The previous prime is 1255337. The next prime is 1255357. The reversal of 1255338 is 8335521.

1255338 is a `hidden beast` number, since 125 + 533 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1255333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30598 + ... + 30638.

It is an arithmetic number, because the mean of its divisors is an integer number (51660).

2^1255338 is an apocalyptic number.

1255338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1653120).

1255338 is an abundant number, since it is smaller than the sum of its proper divisors (2050902).

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

1255338 is an frugal number, since it uses more digits than its factorization.

1255338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 53 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1255338 is about 1120.4186717473. The cubic root of 1255338 is about 107.8748550443.

The spelling of 1255338 in words is "one million, two hundred fifty-five thousand, three hundred thirty-eight".