1442335442 has 4 divisors (see below), whose sum is σ = 2163503166. Its totient is φ = 721167720.

The previous prime is 1442335439. The next prime is 1442335459. The reversal of 1442335442 is 2445332441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2445332441 = 5021 ⋅487021.

It can be written as a sum of positive squares in only one way, i.e., 1368186121 + 74149321 = 36989^2 + 8611^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1442335399 and 1442335408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360583859 + ... + 360583862.

Almost surely, 2^1442335442 is an apocalyptic number.

1442335442 is a deficient number, since it is larger than the sum of its proper divisors (721167724).

1442335442 is an equidigital number, since it uses as much as digits as its factorization.

1442335442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721167723.

The product of its digits is 46080, while the sum is 32.

The square root of 1442335442 is about 37978.0916055560. The cubic root of 1442335442 is about 1129.8533868833.

Adding to 1442335442 its reverse (2445332441), we get a palindrome (3887667883).

The spelling of 1442335442 in words is "one billion, four hundred forty-two million, three hundred thirty-five thousand, four hundred forty-two".