442024540 has 24 divisors (see below), whose sum is σ = 928937520. Its totient is φ = 176679168.

The previous prime is 442024537. The next prime is 442024573. The reversal of 442024540 is 45420244.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 22359 + ... + 37201.

It is an arithmetic number, because the mean of its divisors is an integer number (38705730).

Almost surely, 2^442024540 is an apocalyptic number.

It is an amenable number.

442024540 is an abundant number, since it is smaller than the sum of its proper divisors (486912980).

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

442024540 is a wasteful number, since it uses less digits than its factorization.

442024540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16341 (or 16339 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 442024540 is about 21024.3796579114. The cubic root of 442024540 is about 761.7552574301.

Adding to 442024540 its reverse (45420244), we get a palindrome (487444784).

The spelling of 442024540 in words is "four hundred forty-two million, twenty-four thousand, five hundred forty".