442302131402 has 32 divisors (see below), whose sum is σ = 683480365200. Its totient is φ = 214576660480.

The previous prime is 442302131389. The next prime is 442302131459. The reversal of 442302131402 is 204131203244.

It can be written as a sum of positive squares in 8 ways, for example, as 135608799001 + 306693332401 = 368251^2 + 553799^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5337002 + ... + 5419242.

Almost surely, 2^442302131402 is an apocalyptic number.

442302131402 is a deficient number, since it is larger than the sum of its proper divisors (241178233798).

442302131402 is a wasteful number, since it uses less digits than its factorization.

442302131402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82858.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 442302131402 its reverse (204131203244), we get a palindrome (646433334646).

The spelling of 442302131402 in words is "four hundred forty-two billion, three hundred two million, one hundred thirty-one thousand, four hundred two".