11421748 has 12 divisors (see below), whose sum is σ = 21525700. Its totient is φ = 5271552.

The previous prime is 11421721. The next prime is 11421749. The reversal of 11421748 is 84712411.

It can be written as a sum of positive squares in 2 ways, for example, as 7333264 + 4088484 = 2708^2 + 2022^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421749) 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, 109773 + ... + 109876.

Almost surely, 2^11421748 is an apocalyptic number.

It is an amenable number.

11421748 is a deficient number, since it is larger than the sum of its proper divisors (10103952).

11421748 is a wasteful number, since it uses less digits than its factorization.

11421748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219666 (or 219664 counting only the distinct ones).

The product of its digits is 1792, while the sum is 28.

The square root of 11421748 is about 3379.6076695380. The cubic root of 11421748 is about 225.2047387444.

The spelling of 11421748 in words is "eleven million, four hundred twenty-one thousand, seven hundred forty-eight".