1362843989 has 8 divisors (see below), whose sum is σ = 1544924640. Its totient is φ = 1191798576.

The previous prime is 1362843983. The next prime is 1362843997. The reversal of 1362843989 is 9893482631.

It is a happy number.

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 1362843989 - 2⁸ = 1362843733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1362843989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1362843983) 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, 2758547 + ... + 2759040.

It is an arithmetic number, because the mean of its divisors is an integer number (193115580).

Almost surely, 2^1362843989 is an apocalyptic number.

1362843989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1362843989 is a deficient number, since it is larger than the sum of its proper divisors (182080651).

1362843989 is a wasteful number, since it uses less digits than its factorization.

1362843989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5517619.

The product of its digits is 2239488, while the sum is 53.

The square root of 1362843989 is about 36916.7169314932. The cubic root of 1362843989 is about 1108.7034041919.

The spelling of 1362843989 in words is "one billion, three hundred sixty-two million, eight hundred forty-three thousand, nine hundred eighty-nine".