1369394443 has 8 divisors (see below), whose sum is σ = 1397088000. Its totient is φ = 1341769728.

The previous prime is 1369394437. The next prime is 1369394479. The reversal of 1369394443 is 3444939631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1369394443 - 2¹³ = 1369386251 is a prime.

It is a super-2 number, since 2×1369394443² = 3750482281038560498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1369394393 and 1369394402.

It is not an unprimeable number, because it can be changed into a prime (1369394743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23958 + ... + 57556.

It is an arithmetic number, because the mean of its divisors is an integer number (174636000).

Almost surely, 2^1369394443 is an apocalyptic number.

1369394443 is a deficient number, since it is larger than the sum of its proper divisors (27693557).

1369394443 is an equidigital number, since it uses as much as digits as its factorization.

1369394443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34421.

The product of its digits is 839808, while the sum is 46.

The square root of 1369394443 is about 37005.3299269173. The cubic root of 1369394443 is about 1110.4768783936.

The spelling of 1369394443 in words is "one billion, three hundred sixty-nine million, three hundred ninety-four thousand, four hundred forty-three".