442460069 has 8 divisors (see below), whose sum is σ = 456145368. Its totient is φ = 428912640.

The previous prime is 442460063. The next prime is 442460099. The reversal of 442460069 is 960064244.

It can be written as a sum of positive squares in 4 ways, for example, as 4060225 + 438399844 = 2015^2 + 20938^2 .

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 442460069 - 2¹² = 442455973 is a prime.

It is a super-2 number, since 2×442460069² = 391541825318969522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442460063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27932 + ... + 40805.

It is an arithmetic number, because the mean of its divisors is an integer number (57018171).

Almost surely, 2^442460069 is an apocalyptic number.

It is an amenable number.

442460069 is a deficient number, since it is larger than the sum of its proper divisors (13685299).

442460069 is a wasteful number, since it uses less digits than its factorization.

442460069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68935.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 442460069 is about 21034.7348212427. The cubic root of 442460069 is about 762.0053623989.

The spelling of 442460069 in words is "four hundred forty-two million, four hundred sixty thousand, sixty-nine".