8442369 has 24 divisors (see below), whose sum is σ = 13366080. Its totient is φ = 5103072.

The previous prime is 8442367. The next prime is 8442373. The reversal of 8442369 is 9632448.

It is a happy number.

It is not a de Polignac number, because 8442369 - 2¹ = 8442367 is a prime.

It is a super-2 number, since 2×8442369² = 142547188664322, which contains 22 as substring.

8442369 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8442367) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6292 + ... + 7514.

It is an arithmetic number, because the mean of its divisors is an integer number (556920).

Almost surely, 2^8442369 is an apocalyptic number.

It is an amenable number.

8442369 is a deficient number, since it is larger than the sum of its proper divisors (4923711).

8442369 is a wasteful number, since it uses less digits than its factorization.

8442369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1298 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 8442369 is about 2905.5755023747. The cubic root of 8442369 is about 203.6204737125.

The spelling of 8442369 in words is "eight million, four hundred forty-two thousand, three hundred sixty-nine".