442700453 has 8 divisors (see below), whose sum is σ = 476953848. Its totient is φ = 408475584.

The previous prime is 442700443. The next prime is 442700471. The reversal of 442700453 is 354007244.

It can be written as a sum of positive squares in 4 ways, for example, as 4133089 + 438567364 = 2033^2 + 20942^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 442700453 - 2²⁶ = 375591589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442700443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33875 + ... + 45087.

It is an arithmetic number, because the mean of its divisors is an integer number (59619231).

Almost surely, 2^442700453 is an apocalyptic number.

It is an amenable number.

442700453 is a deficient number, since it is larger than the sum of its proper divisors (34253395).

442700453 is a wasteful number, since it uses less digits than its factorization.

442700453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14263.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 442700453 is about 21040.4480227965. The cubic root of 442700453 is about 762.1433339717.

Adding to 442700453 its reverse (354007244), we get a palindrome (796707697).

The spelling of 442700453 in words is "four hundred forty-two million, seven hundred thousand, four hundred fifty-three".