21141338 has 8 divisors (see below), whose sum is σ = 33381120. Its totient is φ = 10014300.

The previous prime is 21141317. The next prime is 21141361. The reversal of 21141338 is 83314112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278138 + ... + 278213.

It is an arithmetic number, because the mean of its divisors is an integer number (4172640).

Almost surely, 2^21141338 is an apocalyptic number.

21141338 is a deficient number, since it is larger than the sum of its proper divisors (12239782).

21141338 is a wasteful number, since it uses less digits than its factorization.

21141338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556372.

The product of its digits is 576, while the sum is 23.

The square root of 21141338 is about 4597.9710742892. The cubic root of 21141338 is about 276.5099878999.

The spelling of 21141338 in words is "twenty-one million, one hundred forty-one thousand, three hundred thirty-eight".