1369384491 has 8 divisors (see below), whose sum is σ = 1831109184. Its totient is φ = 910291400.

The previous prime is 1369384477. The next prime is 1369384501. The reversal of 1369384491 is 1944839631.

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 1369384491 - 2⁷ = 1369384363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1369384491.

It is not an unprimeable number, because it can be changed into a prime (1369384411) 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, 656685 + ... + 658766.

It is an arithmetic number, because the mean of its divisors is an integer number (228888648).

Almost surely, 2^1369384491 is an apocalyptic number.

1369384491 is a deficient number, since it is larger than the sum of its proper divisors (461724693).

1369384491 is a wasteful number, since it uses less digits than its factorization.

1369384491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315801.

The product of its digits is 559872, while the sum is 48.

The square root of 1369384491 is about 37005.1954595568. The cubic root of 1369384491 is about 1110.4741882769.

The spelling of 1369384491 in words is "one billion, three hundred sixty-nine million, three hundred eighty-four thousand, four hundred ninety-one".