442769413 has 4 divisors (see below), whose sum is σ = 442890720. Its totient is φ = 442648108.

The previous prime is 442769387. The next prime is 442769441. The reversal of 442769413 is 314967244.

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 442769413 - 2⁹ = 442768901 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 (442769513) 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, 55003 + ... + 62536.

It is an arithmetic number, because the mean of its divisors is an integer number (110722680).

Almost surely, 2^442769413 is an apocalyptic number.

It is an amenable number.

442769413 is a deficient number, since it is larger than the sum of its proper divisors (121307).

442769413 is a wasteful number, since it uses less digits than its factorization.

442769413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121306.

The product of its digits is 145152, while the sum is 40.

The square root of 442769413 is about 21042.0867073587. The cubic root of 442769413 is about 762.1829052554.

The spelling of 442769413 in words is "four hundred forty-two million, seven hundred sixty-nine thousand, four hundred thirteen".