1383442 has 4 divisors (see below), whose sum is σ = 2075166. Its totient is φ = 691720.

The previous prime is 1383433. The next prime is 1383449. The reversal of 1383442 is 2443831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2443831 = 13 ⋅187987.

It can be written as a sum of positive squares in only one way, i.e., 919681 + 463761 = 959^2 + 681^2 .

It is not an unprimeable number, because it can be changed into a prime (1383449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345859 + ... + 345862.

2^1383442 is an apocalyptic number.

1383442 is a deficient number, since it is larger than the sum of its proper divisors (691724).

1383442 is an equidigital number, since it uses as much as digits as its factorization.

1383442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691723.

The product of its digits is 2304, while the sum is 25.

The square root of 1383442 is about 1176.1981125644. The cubic root of 1383442 is about 111.4261141877.

The spelling of 1383442 in words is "one million, three hundred eighty-three thousand, four hundred forty-two".