442420124 has 6 divisors (see below), whose sum is σ = 774235224. Its totient is φ = 221210060.

The previous prime is 442420117. The next prime is 442420171. The reversal of 442420124 is 421024244.

It is a super-2 number, since 2×442420124² = 391471132240350752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 442420124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55302512 + ... + 55302519.

It is an arithmetic number, because the mean of its divisors is an integer number (129039204).

Almost surely, 2^442420124 is an apocalyptic number.

It is an amenable number.

442420124 is a deficient number, since it is larger than the sum of its proper divisors (331815100).

442420124 is a wasteful number, since it uses less digits than its factorization.

442420124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110605035 (or 110605033 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 442420124 is about 21033.7852988947. The cubic root of 442420124 is about 761.9824305968.

Adding to 442420124 its reverse (421024244), we get a palindrome (863444368).

The spelling of 442420124 in words is "four hundred forty-two million, four hundred twenty thousand, one hundred twenty-four".