442340302420 has 24 divisors (see below), whose sum is σ = 928928133000. Its totient is φ = 176933549952.

The previous prime is 442340302367. The next prime is 442340302427. The reversal of 442340302420 is 24203043244.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9163084176 + 433177218244 = 95724^2 + 658162^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442340302427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1885806 + ... + 2107354.

It is an arithmetic number, because the mean of its divisors is an integer number (38705338875).

Almost surely, 2^442340302420 is an apocalyptic number.

It is an amenable number.

442340302420 is an abundant number, since it is smaller than the sum of its proper divisors (486587830580).

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

442340302420 is a wasteful number, since it uses less digits than its factorization.

442340302420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321387 (or 321385 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 442340302420 its reverse (24203043244), we get a palindrome (466543345664).

The spelling of 442340302420 in words is "four hundred forty-two billion, three hundred forty million, three hundred two thousand, four hundred twenty".