442405312145230 has 64 divisors (see below), whose sum is σ = 913428806750208. Its totient is φ = 151125770943360.

The previous prime is 442405312145219. The next prime is 442405312145243. The reversal of 442405312145230 is 32541213504244.

It is a super-2 number, since 2×442405312145230² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78135675 + ... + 83606185.

It is an arithmetic number, because the mean of its divisors is an integer number (14272325105472).

Almost surely, 2^{442405312145230} is an apocalyptic number.

442405312145230 is an abundant number, since it is smaller than the sum of its proper divisors (471023494604978).

442405312145230 is a wasteful number, since it uses less digits than its factorization.

442405312145230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474761.

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 442405312145230 its reverse (32541213504244), we get a palindrome (474946525649474).

The spelling of 442405312145230 in words is "four hundred forty-two trillion, four hundred five billion, three hundred twelve million, one hundred forty-five thousand, two hundred thirty".