442313773 has 4 divisors (see below), whose sum is σ = 482524128. Its totient is φ = 402103420.

The previous prime is 442313761. The next prime is 442313777. The reversal of 442313773 is 377313244.

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 a cyclic number.

It is not a de Polignac number, because 442313773 - 2¹⁷ = 442182701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442313777) 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, 20105161 + ... + 20105182.

It is an arithmetic number, because the mean of its divisors is an integer number (120631032).

Almost surely, 2^442313773 is an apocalyptic number.

It is an amenable number.

442313773 is a deficient number, since it is larger than the sum of its proper divisors (40210355).

442313773 is a wasteful number, since it uses less digits than its factorization.

442313773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40210354.

The product of its digits is 42336, while the sum is 34.

The square root of 442313773 is about 21031.2570475471. The cubic root of 442313773 is about 761.9213694143.

The spelling of 442313773 in words is "four hundred forty-two million, three hundred thirteen thousand, seven hundred seventy-three".