21341148 has 24 divisors (see below), whose sum is σ = 51961728. Its totient is φ = 6804336.

The previous prime is 21341147. The next prime is 21341179. The reversal of 21341148 is 84114312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21341141) by changing a digit.

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, 38386 + ... + 38937.

It is an arithmetic number, because the mean of its divisors is an integer number (2165072).

Almost surely, 2^21341148 is an apocalyptic number.

It is an amenable number.

21341148 is an abundant number, since it is smaller than the sum of its proper divisors (30620580).

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

21341148 is a wasteful number, since it uses less digits than its factorization.

21341148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77353 (or 77351 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 21341148 is about 4619.6480385415. The cubic root of 21341148 is about 277.3783705263.

The spelling of 21341148 in words is "twenty-one million, three hundred forty-one thousand, one hundred forty-eight".