21483465 has 32 divisors (see below), whose sum is σ = 36274176. Its totient is φ = 10841280.

The previous prime is 21483439. The next prime is 21483481. The reversal of 21483465 is 56438412.

It is not a de Polignac number, because 21483465 - 2⁷ = 21483337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21364 + ... + 22346.

It is an arithmetic number, because the mean of its divisors is an integer number (1133568).

Almost surely, 2^21483465 is an apocalyptic number.

It is an amenable number.

21483465 is a deficient number, since it is larger than the sum of its proper divisors (14790711).

21483465 is a wasteful number, since it uses less digits than its factorization.

21483465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069.

The product of its digits is 23040, while the sum is 33.

The square root of 21483465 is about 4635.0258898953. The cubic root of 21483465 is about 277.9935862779.

The spelling of 21483465 in words is "twenty-one million, four hundred eighty-three thousand, four hundred sixty-five".