442512049 has 4 divisors (see below), whose sum is σ = 505728064. Its totient is φ = 379296036.

The previous prime is 442512041. The next prime is 442512067. The reversal of 442512049 is 940215244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 442512049 - 2³ = 442512041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442512049.

It is not an unprimeable number, because it can be changed into a prime (442512041) 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, 31607997 + ... + 31608010.

It is an arithmetic number, because the mean of its divisors is an integer number (126432016).

Almost surely, 2^442512049 is an apocalyptic number.

It is an amenable number.

442512049 is a deficient number, since it is larger than the sum of its proper divisors (63216015).

442512049 is an equidigital number, since it uses as much as digits as its factorization.

442512049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63216014.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 442512049 is about 21035.9703603138. The cubic root of 442512049 is about 762.0352012405.

The spelling of 442512049 in words is "four hundred forty-two million, five hundred twelve thousand, forty-nine".