1118269493 has 8 divisors (see below), whose sum is σ = 1261997280. Its totient is φ = 981552880.

The previous prime is 1118269489. The next prime is 1118269513. The reversal of 1118269493 is 3949628111.

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

It is not a de Polignac number, because 1118269493 - 2² = 1118269489 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 (1118269483) 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, 1752455 + ... + 1753092.

It is an arithmetic number, because the mean of its divisors is an integer number (157749660).

Almost surely, 2^1118269493 is an apocalyptic number.

It is an amenable number.

1118269493 is a deficient number, since it is larger than the sum of its proper divisors (143727787).

1118269493 is a wasteful number, since it uses less digits than its factorization.

1118269493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3505587.

The product of its digits is 93312, while the sum is 44.

The square root of 1118269493 is about 33440.5366733251. The cubic root of 1118269493 is about 1037.9636846999.

The spelling of 1118269493 in words is "one billion, one hundred eighteen million, two hundred sixty-nine thousand, four hundred ninety-three".