21376952 has 16 divisors (see below), whose sum is σ = 40151160. Its totient is φ = 10669984.

The previous prime is 21376951. The next prime is 21376981. The reversal of 21376952 is 25967312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21376951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3443 + ... + 7389.

Almost surely, 2^21376952 is an apocalyptic number.

It is an amenable number.

21376952 is a deficient number, since it is larger than the sum of its proper divisors (18774208).

21376952 is a wasteful number, since it uses less digits than its factorization.

21376952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4630 (or 4626 counting only the distinct ones).

The product of its digits is 22680, while the sum is 35.

The square root of 21376952 is about 4623.5216015501. The cubic root of 21376952 is about 277.5334028995.

The spelling of 21376952 in words is "twenty-one million, three hundred seventy-six thousand, nine hundred fifty-two".