1294748389 has 8 divisors (see below), whose sum is σ = 1446903360. Its totient is φ = 1148335200.

The previous prime is 1294748381. The next prime is 1294748393. The reversal of 1294748389 is 9838474921.

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 1294748389 - 2³ = 1294748381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1294748381) 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, 1434969 + ... + 1435870.

It is an arithmetic number, because the mean of its divisors is an integer number (180862920).

Almost surely, 2^1294748389 is an apocalyptic number.

It is an amenable number.

1294748389 is a deficient number, since it is larger than the sum of its proper divisors (152154971).

1294748389 is a wasteful number, since it uses less digits than its factorization.

1294748389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870891.

The product of its digits is 3483648, while the sum is 55.

The square root of 1294748389 is about 35982.6123148390. The cubic root of 1294748389 is about 1089.9212660914.

The spelling of 1294748389 in words is "one billion, two hundred ninety-four million, seven hundred forty-eight thousand, three hundred eighty-nine".