21463352 has 16 divisors (see below), whose sum is σ = 40754400. Its totient is φ = 10595520.

The previous prime is 21463339. The next prime is 21463363. The reversal of 21463352 is 25336412.

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, 16349 + ... + 17612.

It is an arithmetic number, because the mean of its divisors is an integer number (2547150).

Almost surely, 2^21463352 is an apocalyptic number.

It is an amenable number.

21463352 is a deficient number, since it is larger than the sum of its proper divisors (19291048).

21463352 is a wasteful number, since it uses less digits than its factorization.

21463352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34046 (or 34042 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 21463352 is about 4632.8557067968. The cubic root of 21463352 is about 277.9068058822.

Adding to 21463352 its reverse (25336412), we get a palindrome (46799764).

The spelling of 21463352 in words is "twenty-one million, four hundred sixty-three thousand, three hundred fifty-two".