11448021 has 32 divisors (see below), whose sum is σ = 17998848. Its totient is φ = 6405120.

The previous prime is 11448001. The next prime is 11448023. The reversal of 11448021 is 12084411.

It is a happy number.

It is not a de Polignac number, because 11448021 - 2⁶ = 11447957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11448023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20275 + ... + 20831.

It is an arithmetic number, because the mean of its divisors is an integer number (562464).

Almost surely, 2^11448021 is an apocalyptic number.

It is an amenable number.

11448021 is a deficient number, since it is larger than the sum of its proper divisors (6550827).

11448021 is a wasteful number, since it uses less digits than its factorization.

11448021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 11448021 is about 3383.4924264730. The cubic root of 11448021 is about 225.3772830624.

The spelling of 11448021 in words is "eleven million, four hundred forty-eight thousand, twenty-one".