1383270 has 48 divisors (see below), whose sum is σ = 3865968. Its totient is φ = 315840.

The previous prime is 1383209. The next prime is 1383287. The reversal of 1383270 is 723831.

It is a self number, because there is not a number n which added to its sum of digits gives 1383270.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1000 + ... + 1940.

It is an arithmetic number, because the mean of its divisors is an integer number (80541).

2^1383270 is an apocalyptic number.

1383270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1383270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1932984).

1383270 is an abundant number, since it is smaller than the sum of its proper divisors (2482698).

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

1383270 is a wasteful number, since it uses less digits than its factorization.

1383270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1383270 is about 1176.1249933574. The cubic root of 1383270 is about 111.4214962165.

It can be divided in two parts, 1383 and 270, that added together give a triangular number (1653 = T₅₇).

The spelling of 1383270 in words is "one million, three hundred eighty-three thousand, two hundred seventy".