442464245 has 8 divisors (see below), whose sum is σ = 535828920. Its totient is φ = 350723520.

The previous prime is 442464233. The next prime is 442464259. The reversal of 442464245 is 542464244.

It can be written as a sum of positive squares in 4 ways, for example, as 4566769 + 437897476 = 2137^2 + 20926^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 442464245 - 2¹² = 442460149 is a prime.

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, 405386 + ... + 406475.

It is an arithmetic number, because the mean of its divisors is an integer number (66978615).

Almost surely, 2^442464245 is an apocalyptic number.

It is an amenable number.

442464245 is a deficient number, since it is larger than the sum of its proper divisors (93364675).

442464245 is a wasteful number, since it uses less digits than its factorization.

442464245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811975.

The product of its digits is 122880, while the sum is 35.

The square root of 442464245 is about 21034.8340853927. The cubic root of 442464245 is about 762.0077596958.

Subtracting 442464245 from its reverse (542464244), we obtain a palindrome (99999999).

The spelling of 442464245 in words is "four hundred forty-two million, four hundred sixty-four thousand, two hundred forty-five".