442697867 has 8 divisors (see below), whose sum is σ = 469127376. Its totient is φ = 416311552.

The previous prime is 442697861. The next prime is 442697881. The reversal of 442697867 is 768796244.

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 442697867 - 2¹⁰ = 442696843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442697861) 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, 11663 + ... + 31959.

It is an arithmetic number, because the mean of its divisors is an integer number (58640922).

Almost surely, 2^442697867 is an apocalyptic number.

442697867 is a deficient number, since it is larger than the sum of its proper divisors (26429509).

442697867 is a wasteful number, since it uses less digits than its factorization.

442697867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21597.

The product of its digits is 4064256, while the sum is 53.

The square root of 442697867 is about 21040.3865696427. The cubic root of 442697867 is about 762.1418499687.

The spelling of 442697867 in words is "four hundred forty-two million, six hundred ninety-seven thousand, eight hundred sixty-seven".