442630136362 has 4 divisors (see below), whose sum is σ = 663945204546. Its totient is φ = 221315068180.

The previous prime is 442630136353. The next prime is 442630136369. The reversal of 442630136362 is 263631036244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 354835853761 + 87794282601 = 595681^2 + 296301^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (442630136369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110657534089 + ... + 110657534092.

Almost surely, 2^442630136362 is an apocalyptic number.

442630136362 is a deficient number, since it is larger than the sum of its proper divisors (221315068184).

442630136362 is a wasteful number, since it uses less digits than its factorization.

442630136362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221315068183.

The product of its (nonzero) digits is 373248, while the sum is 40.

The spelling of 442630136362 in words is "four hundred forty-two billion, six hundred thirty million, one hundred thirty-six thousand, three hundred sixty-two".