1140393 has 4 divisors (see below), whose sum is σ = 1520528. Its totient is φ = 760260.

The previous prime is 1140389. The next prime is 1140413. The reversal of 1140393 is 3930411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3930411 = 3 ⋅1310137.

It is not a de Polignac number, because 1140393 - 2² = 1140389 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190063 + ... + 190068.

It is an arithmetic number, because the mean of its divisors is an integer number (380132).

2^1140393 is an apocalyptic number.

It is an amenable number.

1140393 is a deficient number, since it is larger than the sum of its proper divisors (380135).

1140393 is an equidigital number, since it uses as much as digits as its factorization.

1140393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380134.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1140393 is about 1067.8918484566. The cubic root of 1140393 is about 104.4763955447.

It can be divided in two parts, 11 and 40393, that added together give a palindrome (40404).

The spelling of 1140393 in words is "one million, one hundred forty thousand, three hundred ninety-three".