1344892989 has 8 divisors (see below), whose sum is σ = 1956208032. Its totient is φ = 815086640.

The previous prime is 1344892981. The next prime is 1344892993. The reversal of 1344892989 is 9892984431.

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 1344892989 - 2³ = 1344892981 is a prime.

It is a super-2 number, since 2×1344892989² = 3617474303722708242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344892981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20377134 + ... + 20377199.

It is an arithmetic number, because the mean of its divisors is an integer number (244526004).

Almost surely, 2^1344892989 is an apocalyptic number.

It is an amenable number.

1344892989 is a deficient number, since it is larger than the sum of its proper divisors (611315043).

1344892989 is a wasteful number, since it uses less digits than its factorization.

1344892989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40754347.

The product of its digits is 4478976, while the sum is 57.

The square root of 1344892989 is about 36672.7826732578. The cubic root of 1344892989 is about 1103.8140300263.

The spelling of 1344892989 in words is "one billion, three hundred forty-four million, eight hundred ninety-two thousand, nine hundred eighty-nine".