442340099 has 4 divisors (see below), whose sum is σ = 442392264. Its totient is φ = 442287936.

The previous prime is 442340089. The next prime is 442340141. The reversal of 442340099 is 990043244.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 442340099 - 2²⁴ = 425562883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442340009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10097 + ... + 31410.

It is an arithmetic number, because the mean of its divisors is an integer number (110598066).

Almost surely, 2^442340099 is an apocalyptic number.

442340099 is a deficient number, since it is larger than the sum of its proper divisors (52165).

442340099 is a wasteful number, since it uses less digits than its factorization.

442340099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52164.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 442340099 is about 21031.8829161823. The cubic root of 442340099 is about 761.9364853383.

The spelling of 442340099 in words is "four hundred forty-two million, three hundred forty thousand, ninety-nine".