1383272 has 24 divisors (see below), whose sum is σ = 2852850. Its totient is φ = 628320.

The previous prime is 1383209. The next prime is 1383287. The reversal of 1383272 is 2723831.

It can be written as a sum of positive squares in only one way, i.e., 1359556 + 23716 = 1166^2 + 154^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 254 + ... + 1682.

2^1383272 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 1383272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1426425).

1383272 is an abundant number, since it is smaller than the sum of its proper divisors (1469578).

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

1383272 is a wasteful number, since it uses less digits than its factorization.

1383272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457 (or 1442 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 1383272 is about 1176.1258436069. The cubic root of 1383272 is about 111.4215499160.

The spelling of 1383272 in words is "one million, three hundred eighty-three thousand, two hundred seventy-two".