11421798 has 16 divisors (see below), whose sum is σ = 22982400. Its totient is φ = 3784136.

The previous prime is 11421779. The next prime is 11421803. The reversal of 11421798 is 89712411.

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 7 ways as a sum of consecutive naturals, for example, 4698 + ... + 6701.

It is an arithmetic number, because the mean of its divisors is an integer number (1436400).

Almost surely, 2^11421798 is an apocalyptic number.

11421798 is an abundant number, since it is smaller than the sum of its proper divisors (11560602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11421798 is a wasteful number, since it uses less digits than its factorization.

11421798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11571.

The product of its digits is 4032, while the sum is 33.

The square root of 11421798 is about 3379.6150668382. The cubic root of 11421798 is about 225.2050673637.

It can be divided in two parts, 114 and 21798, that added together give a palindrome (21912).

The spelling of 11421798 in words is "eleven million, four hundred twenty-one thousand, seven hundred ninety-eight".