442630236452250 has 128 divisors (see below), whose sum is σ = 1377419308462080. Its totient is φ = 91975114056000.

The previous prime is 442630236452233. The next prime is 442630236452263. The reversal of 442630236452250 is 52254632036244.

It is a self number, because there is not a number n which added to its sum of digits gives 442630236452250.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3832238670 + ... + 3832354169.

It is an arithmetic number, because the mean of its divisors is an integer number (10761088347360).

Almost surely, 2^{442630236452250} is an apocalyptic number.

442630236452250 is an abundant number, since it is smaller than the sum of its proper divisors (934789072009830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442630236452250 is a wasteful number, since it uses less digits than its factorization.

442630236452250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7664592877 (or 7664592867 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 48.

Adding to 442630236452250 its reverse (52254632036244), we get a palindrome (494884868488494).

The spelling of 442630236452250 in words is "four hundred forty-two trillion, six hundred thirty billion, two hundred thirty-six million, four hundred fifty-two thousand, two hundred fifty".