21141296 has 20 divisors (see below), whose sum is σ = 44685384. Its totient is φ = 9609600.

The previous prime is 21141271. The next prime is 21141299. The reversal of 21141296 is 69214112.

It is not an unprimeable number, because it can be changed into a prime (21141299) 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, 59885 + ... + 60236.

Almost surely, 2^21141296 is an apocalyptic number.

It is an amenable number.

21141296 is an abundant number, since it is smaller than the sum of its proper divisors (23544088).

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

21141296 is a wasteful number, since it uses less digits than its factorization.

21141296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120140 (or 120134 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 21141296 is about 4597.9665070550. The cubic root of 21141296 is about 276.5098047921.

The spelling of 21141296 in words is "twenty-one million, one hundred forty-one thousand, two hundred ninety-six".