21414124 has 12 divisors (see below), whose sum is σ = 37825704. Its totient is φ = 10606784.

The previous prime is 21414119. The next prime is 21414193. The reversal of 21414124 is 42141412.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24589 + ... + 25444.

It is an arithmetic number, because the mean of its divisors is an integer number (3152142).

Almost surely, 2^21414124 is an apocalyptic number.

It is an amenable number.

21414124 is a deficient number, since it is larger than the sum of its proper divisors (16411580).

21414124 is a wasteful number, since it uses less digits than its factorization.

21414124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50144 (or 50142 counting only the distinct ones).

The product of its digits is 256, while the sum is 19.

The square root of 21414124 is about 4627.5397351076. The cubic root of 21414124 is about 277.6941757062.

Adding to 21414124 its reverse (42141412), we get a palindrome (63555536).

The spelling of 21414124 in words is "twenty-one million, four hundred fourteen thousand, one hundred twenty-four".