442297445 has 8 divisors (see below), whose sum is σ = 545101944. Its totient is φ = 344274624.

The previous prime is 442297433. The next prime is 442297451. The reversal of 442297445 is 544792244.

It can be written as a sum of positive squares in 4 ways, for example, as 99640324 + 342657121 = 9982^2 + 18511^2 .

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 442297445 - 2⁸ = 442297189 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, 1195214 + ... + 1195583.

It is an arithmetic number, because the mean of its divisors is an integer number (68137743).

Almost surely, 2^442297445 is an apocalyptic number.

It is an amenable number.

442297445 is a deficient number, since it is larger than the sum of its proper divisors (102804499).

442297445 is a wasteful number, since it uses less digits than its factorization.

442297445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390839.

The product of its digits is 322560, while the sum is 41.

The square root of 442297445 is about 21030.8688598450. The cubic root of 442297445 is about 761.9119938640.

The spelling of 442297445 in words is "four hundred forty-two million, two hundred ninety-seven thousand, four hundred forty-five".