21466232 has 16 divisors (see below), whose sum is σ = 40460640. Its totient is φ = 10676736.

The previous prime is 21466201. The next prime is 21466243. The reversal of 21466232 is 23266412.

It is a congruent number.

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, 5408 + ... + 8495.

It is an arithmetic number, because the mean of its divisors is an integer number (2528790).

Almost surely, 2^21466232 is an apocalyptic number.

It is an amenable number.

21466232 is a deficient number, since it is larger than the sum of its proper divisors (18994408).

21466232 is a wasteful number, since it uses less digits than its factorization.

21466232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14102 (or 14098 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 21466232 is about 4633.1665197789. The cubic root of 21466232 is about 277.9192353760.

The spelling of 21466232 in words is "twenty-one million, four hundred sixty-six thousand, two hundred thirty-two".