442253319 has 4 divisors (see below), whose sum is σ = 589671096. Its totient is φ = 294835544.

The previous prime is 442253293. The next prime is 442253327. The reversal of 442253319 is 913352244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442253319 - 2¹⁵ = 442220551 is a prime.

It is a super-2 number, since 2×442253319² = 391175996333031522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 442253319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442253369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73708884 + ... + 73708889.

It is an arithmetic number, because the mean of its divisors is an integer number (147417774).

Almost surely, 2^442253319 is an apocalyptic number.

442253319 is a deficient number, since it is larger than the sum of its proper divisors (147417777).

442253319 is a wasteful number, since it uses less digits than its factorization.

442253319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147417776.

The product of its digits is 25920, while the sum is 33.

The square root of 442253319 is about 21029.8197567169. The cubic root of 442253319 is about 761.8866555258.

The spelling of 442253319 in words is "four hundred forty-two million, two hundred fifty-three thousand, three hundred nineteen".