21482907 has 8 divisors (see below), whose sum is σ = 29568000. Its totient is φ = 13859880.

The previous prime is 21482899. The next prime is 21482927. The reversal of 21482907 is 70928412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21482907 - 2³ = 21482899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21482927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115407 + ... + 115592.

It is an arithmetic number, because the mean of its divisors is an integer number (3696000).

Almost surely, 2^21482907 is an apocalyptic number.

21482907 is a deficient number, since it is larger than the sum of its proper divisors (8085093).

21482907 is a wasteful number, since it uses less digits than its factorization.

21482907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231033.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 21482907 is about 4634.9656956659. The cubic root of 21482907 is about 277.9911794382.

The spelling of 21482907 in words is "twenty-one million, four hundred eighty-two thousand, nine hundred seven".