21483652 has 6 divisors (see below), whose sum is σ = 37596398. Its totient is φ = 10741824.

The previous prime is 21483641. The next prime is 21483689. The reversal of 21483652 is 25638412.

It can be written as a sum of positive squares in only one way, i.e., 21013056 + 470596 = 4584^2 + 686^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2685453 + ... + 2685460.

Almost surely, 2^21483652 is an apocalyptic number.

It is an amenable number.

21483652 is a deficient number, since it is larger than the sum of its proper divisors (16112746).

21483652 is a wasteful number, since it uses less digits than its factorization.

21483652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5370917 (or 5370915 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 21483652 is about 4635.0460623385. The cubic root of 21483652 is about 277.9943928617.

The spelling of 21483652 in words is "twenty-one million, four hundred eighty-three thousand, six hundred fifty-two".