442522040 has 32 divisors (see below), whose sum is σ = 1004989680. Its totient is φ = 175352832.

The previous prime is 442522039. The next prime is 442522043. The reversal of 442522040 is 40225244.

It is a junction number, because it is equal to n+sod(n) for n = 442521997 and 442522015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442522043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47417 + ... + 55976.

Almost surely, 2^442522040 is an apocalyptic number.

442522040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442522040 is an abundant number, since it is smaller than the sum of its proper divisors (562467640).

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

442522040 is a wasteful number, since it uses less digits than its factorization.

442522040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103511 (or 103507 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 442522040 is about 21036.2078331623. The cubic root of 442522040 is about 762.0409362530.

Adding to 442522040 its reverse (40225244), we get a palindrome (482747284).

The spelling of 442522040 in words is "four hundred forty-two million, five hundred twenty-two thousand, forty".