21482835 has 16 divisors (see below), whose sum is σ = 37497600. Its totient is φ = 10415840.

The previous prime is 21482827. The next prime is 21482837. The reversal of 21482835 is 53828412.

It is not a de Polignac number, because 21482835 - 2³ = 21482827 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 21482796 and 21482805.

It is not an unprimeable number, because it can be changed into a prime (21482837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64935 + ... + 65264.

It is an arithmetic number, because the mean of its divisors is an integer number (2343600).

Almost surely, 2^21482835 is an apocalyptic number.

21482835 is a deficient number, since it is larger than the sum of its proper divisors (16014765).

21482835 is a wasteful number, since it uses less digits than its factorization.

21482835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130218.

The product of its digits is 15360, while the sum is 33.

The square root of 21482835 is about 4634.9579286117. The cubic root of 21482835 is about 277.9908688752.

The spelling of 21482835 in words is "twenty-one million, four hundred eighty-two thousand, eight hundred thirty-five".