21314712 has 32 divisors (see below), whose sum is σ = 53452080. Its totient is φ = 7082880.

The previous prime is 21314687. The next prime is 21314729. The reversal of 21314712 is 21741312.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 7762 + ... + 10142.

Almost surely, 2^21314712 is an apocalyptic number.

It is an amenable number.

21314712 is an abundant number, since it is smaller than the sum of its proper divisors (32137368).

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

21314712 is a wasteful number, since it uses less digits than its factorization.

21314712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763 (or 2759 counting only the distinct ones).

The product of its digits is 336, while the sum is 21.

The square root of 21314712 is about 4616.7858949707. The cubic root of 21314712 is about 277.2637905535.

The spelling of 21314712 in words is "twenty-one million, three hundred fourteen thousand, seven hundred twelve".