442498725 has 72 divisors (see below), whose sum is σ = 849743232. Its totient is φ = 219542400.

The previous prime is 442498723. The next prime is 442498739. The reversal of 442498725 is 527894244.

It is not a de Polignac number, because 442498725 - 2¹ = 442498723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442498723) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 190320 + ... + 192630.

Almost surely, 2^442498725 is an apocalyptic number.

442498725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

442498725 is a deficient number, since it is larger than the sum of its proper divisors (407244507).

442498725 is a wasteful number, since it uses less digits than its factorization.

442498725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387 (or 2379 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 442498725 is about 21035.6536622944. The cubic root of 442498725 is about 762.0275528922.

The spelling of 442498725 in words is "four hundred forty-two million, four hundred ninety-eight thousand, seven hundred twenty-five".