21846152 has 8 divisors (see below), whose sum is σ = 40961550. Its totient is φ = 10923072.

The previous prime is 21846151. The next prime is 21846161. The reversal of 21846152 is 25164812.

It can be written as a sum of positive squares in only one way, i.e., 18438436 + 3407716 = 4294^2 + 1846^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (21846151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365377 + ... + 1365392.

Almost surely, 2^21846152 is an apocalyptic number.

It is an amenable number.

21846152 is a deficient number, since it is larger than the sum of its proper divisors (19115398).

21846152 is a wasteful number, since it uses less digits than its factorization.

21846152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730775 (or 2730771 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 21846152 is about 4673.9867351117. The cubic root of 21846152 is about 279.5492407189.

The spelling of 21846152 in words is "twenty-one million, eight hundred forty-six thousand, one hundred fifty-two".