442125624 has 32 divisors (see below), whose sum is σ = 1105992720. Its totient is φ = 147284736.

The previous prime is 442125583. The next prime is 442125631. The reversal of 442125624 is 426521244.

It is a junction number, because it is equal to n+sod(n) for n = 442125591 and 442125600.

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, 42684 + ... + 52020.

Almost surely, 2^442125624 is an apocalyptic number.

It is an amenable number.

442125624 is an abundant number, since it is smaller than the sum of its proper divisors (663867096).

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

442125624 is a wasteful number, since it uses less digits than its factorization.

442125624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11319 (or 11315 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 442125624 is about 21026.7834915376. The cubic root of 442125624 is about 761.8133201186.

Adding to 442125624 its reverse (426521244), we get a palindrome (868646868).

The spelling of 442125624 in words is "four hundred forty-two million, one hundred twenty-five thousand, six hundred twenty-four".