1381792 has 24 divisors (see below), whose sum is σ = 2816100. Its totient is φ = 666624.

The previous prime is 1381769. The next prime is 1381819. The reversal of 1381792 is 2971831.

It can be written as a sum of positive squares in 2 ways, for example, as 1354896 + 26896 = 1164^2 + 164^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184 + ... + 1672.

2^1381792 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 1381792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1408050).

1381792 is an abundant number, since it is smaller than the sum of its proper divisors (1434308).

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

1381792 is a wasteful number, since it uses less digits than its factorization.

1381792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528 (or 1520 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 1381792 is about 1175.4964908497. The cubic root of 1381792 is about 111.3817980956.

The spelling of 1381792 in words is "one million, three hundred eighty-one thousand, seven hundred ninety-two".