442302522 has 8 divisors (see below), whose sum is σ = 884605056. Its totient is φ = 147434172.

The previous prime is 442302479. The next prime is 442302541. The reversal of 442302522 is 225203244.

It is a happy number.

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

442302522 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 442302492 and 442302501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36858538 + ... + 36858549.

It is an arithmetic number, because the mean of its divisors is an integer number (110575632).

Almost surely, 2^442302522 is an apocalyptic number.

442302522 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

442302522 is a wasteful number, since it uses less digits than its factorization.

442302522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73717092.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 442302522 is about 21030.9895630234. The cubic root of 442302522 is about 761.9149091061.

Adding to 442302522 its reverse (225203244), we get a palindrome (667505766).

The spelling of 442302522 in words is "four hundred forty-two million, three hundred two thousand, five hundred twenty-two".