442223615 has 8 divisors (see below), whose sum is σ = 532365648. Its totient is φ = 352647360.

The previous prime is 442223591. The next prime is 442223629. The reversal of 442223615 is 516322244.

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

It is not a de Polignac number, because 442223615 - 2⁸ = 442223359 is a prime.

It is a Duffinian number.

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, 139721 + ... + 142850.

It is an arithmetic number, because the mean of its divisors is an integer number (66545706).

Almost surely, 2^442223615 is an apocalyptic number.

442223615 is a deficient number, since it is larger than the sum of its proper divisors (90142033).

442223615 is a wasteful number, since it uses less digits than its factorization.

442223615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282889.

The product of its digits is 11520, while the sum is 29.

The square root of 442223615 is about 21029.1135096085. The cubic root of 442223615 is about 761.8695977394.

Adding to 442223615 its reverse (516322244), we get a palindrome (958545859).

The spelling of 442223615 in words is "four hundred forty-two million, two hundred twenty-three thousand, six hundred fifteen".