11331398 has 16 divisors (see below), whose sum is σ = 18800880. Its totient is φ = 5088096.

The previous prime is 11331389. The next prime is 11331473. The reversal of 11331398 is 89313311.

It is a self number, because there is not a number n which added to its sum of digits gives 11331398.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4928 + ... + 6851.

It is an arithmetic number, because the mean of its divisors is an integer number (1175055).

Almost surely, 2^11331398 is an apocalyptic number.

11331398 is a deficient number, since it is larger than the sum of its proper divisors (7469482).

11331398 is a wasteful number, since it uses less digits than its factorization.

11331398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11831.

The product of its digits is 1944, while the sum is 29.

The square root of 11331398 is about 3366.2141940168. The cubic root of 11331398 is about 224.6093501213.

The spelling of 11331398 in words is "eleven million, three hundred thirty-one thousand, three hundred ninety-eight".