21414696 has 64 divisors (see below), whose sum is σ = 57542400. Its totient is φ = 6617088.

The previous prime is 21414689. The next prime is 21414697. The reversal of 21414696 is 69641412.

It is not an unprimeable number, because it can be changed into a prime (21414697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29425 + ... + 30143.

It is an arithmetic number, because the mean of its divisors is an integer number (899100).

Almost surely, 2^21414696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21414696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28771200).

21414696 is an abundant number, since it is smaller than the sum of its proper divisors (36127704).

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

21414696 is a wasteful number, since it uses less digits than its factorization.

21414696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 814 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 21414696 is about 4627.6015385943. The cubic root of 21414696 is about 277.6966482123.

The spelling of 21414696 in words is "twenty-one million, four hundred fourteen thousand, six hundred ninety-six".