1395079442 has 4 divisors (see below), whose sum is σ = 2092619166. Its totient is φ = 697539720.

The previous prime is 1395079403. The next prime is 1395079447. The reversal of 1395079442 is 2449705931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2449705931 = 9241 ⋅265091.

It can be written as a sum of positive squares in only one way, i.e., 1280995681 + 114083761 = 35791^2 + 10681^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1395079393 and 1395079402.

It is not an unprimeable number, because it can be changed into a prime (1395079447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348769859 + ... + 348769862.

Almost surely, 2^1395079442 is an apocalyptic number.

1395079442 is a deficient number, since it is larger than the sum of its proper divisors (697539724).

1395079442 is an equidigital number, since it uses as much as digits as its factorization.

1395079442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697539723.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 1395079442 is about 37350.7622679913. The cubic root of 1395079442 is about 1117.3767907977.

The spelling of 1395079442 in words is "one billion, three hundred ninety-five million, seventy-nine thousand, four hundred forty-two".