1140398 has 8 divisors (see below), whose sum is σ = 1954992. Its totient is φ = 488736.

The previous prime is 1140389. The next prime is 1140413. The reversal of 1140398 is 8930411.

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

It is a d-powerful number, because it can be written as 1 + 1 + 4¹⁰ + 0 + 3 + 9⁵ + 8⁵ .

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40715 + ... + 40742.

It is an arithmetic number, because the mean of its divisors is an integer number (244374).

2^1140398 is an apocalyptic number.

1140398 is a deficient number, since it is larger than the sum of its proper divisors (814594).

1140398 is an equidigital number, since it uses as much as digits as its factorization.

1140398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81466.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1140398 is about 1067.8941895150. The cubic root of 1140398 is about 104.4765482351.

The spelling of 1140398 in words is "one million, one hundred forty thousand, three hundred ninety-eight".