1383256 has 32 divisors (see below), whose sum is σ = 3140640. Its totient is φ = 557568.

The previous prime is 1383209. The next prime is 1383287. The reversal of 1383256 is 6523831.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

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, 226 + ... + 1678.

It is an arithmetic number, because the mean of its divisors is an integer number (98145).

2^1383256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1383256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1570320).

1383256 is an abundant number, since it is smaller than the sum of its proper divisors (1757384).

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

1383256 is a wasteful number, since it uses less digits than its factorization.

1383256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483 (or 1479 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 1383256 is about 1176.1190415940. The cubic root of 1383256 is about 111.4211203183.

The spelling of 1383256 in words is "one million, three hundred eighty-three thousand, two hundred fifty-six".