442520302 has 16 divisors (see below), whose sum is σ = 803230560. Its totient is φ = 178495488.

The previous prime is 442520297. The next prime is 442520311. The reversal of 442520302 is 203025244.

It is a congruent number.

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, 929427 + ... + 929902.

It is an arithmetic number, because the mean of its divisors is an integer number (50201910).

Almost surely, 2^442520302 is an apocalyptic number.

442520302 is a deficient number, since it is larger than the sum of its proper divisors (360710258).

442520302 is a wasteful number, since it uses less digits than its factorization.

442520302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859355.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 442520302 is about 21036.1665233949. The cubic root of 442520302 is about 762.0399386162.

Adding to 442520302 its reverse (203025244), we get a palindrome (645545546).

The spelling of 442520302 in words is "four hundred forty-two million, five hundred twenty thousand, three hundred two".