442823625 has 64 divisors (see below), whose sum is σ = 824428800. Its totient is φ = 234532800.

The previous prime is 442823611. The next prime is 442823627. The reversal of 442823625 is 526328244.

442823625 is a `hidden beast` number, since 4 + 4 + 2 + 8 + 23 + 625 = 666.

It is not a de Polignac number, because 442823625 - 2⁸ = 442823369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442823625.

It is not an unprimeable number, because it can be changed into a prime (442823627) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 603759 + ... + 604491.

It is an arithmetic number, because the mean of its divisors is an integer number (12881700).

Almost surely, 2^442823625 is an apocalyptic number.

442823625 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

442823625 is a deficient number, since it is larger than the sum of its proper divisors (381605175).

442823625 is a wasteful number, since it uses less digits than its factorization.

442823625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936 (or 920 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 442823625 is about 21043.3748481559. The cubic root of 442823625 is about 762.2140108167.

The spelling of 442823625 in words is "four hundred forty-two million, eight hundred twenty-three thousand, six hundred twenty-five".