442202240402 has 16 divisors (see below), whose sum is σ = 714342679512. Its totient is φ = 204088775040.

The previous prime is 442202240357. The next prime is 442202240437. The reversal of 442202240402 is 204042202244.

It can be written as a sum of positive squares in 4 ways, for example, as 199979790481 + 242222449921 = 447191^2 + 492161^2 .

It is a super-2 number, since 2×442202240402² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1180328 + ... + 1509164.

Almost surely, 2^442202240402 is an apocalyptic number.

442202240402 is a deficient number, since it is larger than the sum of its proper divisors (272140439110).

442202240402 is a wasteful number, since it uses less digits than its factorization.

442202240402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380573.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 442202240402 its reverse (204042202244), we get a palindrome (646244442646).

The spelling of 442202240402 in words is "four hundred forty-two billion, two hundred two million, two hundred forty thousand, four hundred two".