442220144150402 has 8 divisors (see below), whose sum is σ = 702349640709516. Its totient is φ = 208103597247232.

The previous prime is 442220144150401. The next prime is 442220144150459. The reversal of 442220144150402 is 204051441022244.

It can be written as a sum of positive squares in 2 ways, for example, as 408968556066841 + 33251588083561 = 20222971^2 + 5766419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (442220144150401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6503237413943 + ... + 6503237414010.

Almost surely, 2^{442220144150402} is an apocalyptic number.

442220144150402 is a deficient number, since it is larger than the sum of its proper divisors (260129496559114).

442220144150402 is a wasteful number, since it uses less digits than its factorization.

442220144150402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13006474827972.

The product of its (nonzero) digits is 81920, while the sum is 35.

Adding to 442220144150402 its reverse (204051441022244), we get a palindrome (646271585172646).

The spelling of 442220144150402 in words is "four hundred forty-two trillion, two hundred twenty billion, one hundred forty-four million, one hundred fifty thousand, four hundred two".