1296993238 has 8 divisors (see below), whose sum is σ = 2047884120. Its totient is φ = 614365200.

The previous prime is 1296993193. The next prime is 1296993241. The reversal of 1296993238 is 8323996921.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17065663 + ... + 17065738.

It is an arithmetic number, because the mean of its divisors is an integer number (255985515).

Almost surely, 2^1296993238 is an apocalyptic number.

1296993238 is a deficient number, since it is larger than the sum of its proper divisors (750890882).

1296993238 is a wasteful number, since it uses less digits than its factorization.

1296993238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34131422.

The product of its digits is 1259712, while the sum is 52.

The square root of 1296993238 is about 36013.7923301615. The cubic root of 1296993238 is about 1090.5508082228.

The spelling of 1296993238 in words is "one billion, two hundred ninety-six million, nine hundred ninety-three thousand, two hundred thirty-eight".