1255392 has 48 divisors (see below), whose sum is σ = 3664080. Its totient is φ = 418176.

The previous prime is 1255391. The next prime is 1255393. The reversal of 1255392 is 2935521.

1255392 is a `hidden beast` number, since 125 + 539 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1255391) and next prime (1255393).

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138 + ... + 1590.

It is an arithmetic number, because the mean of its divisors is an integer number (76335).

2^1255392 is an apocalyptic number.

1255392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1832040).

1255392 is an abundant number, since it is smaller than the sum of its proper divisors (2408688).

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

1255392 is a wasteful number, since it uses less digits than its factorization.

1255392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472 (or 1458 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 1255392 is about 1120.4427696228. The cubic root of 1255392 is about 107.8764018147.

The spelling of 1255392 in words is "one million, two hundred fifty-five thousand, three hundred ninety-two".