21476196 has 36 divisors (see below), whose sum is σ = 62043072. Its totient is φ = 6135984.

The previous prime is 21476179. The next prime is 21476201. The reversal of 21476196 is 69167412.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×21476196² = 922453989260832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 21476196.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 42360 + ... + 42863.

Almost surely, 2^21476196 is an apocalyptic number.

It is an amenable number.

21476196 is an abundant number, since it is smaller than the sum of its proper divisors (40566876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21476196 is a wasteful number, since it uses less digits than its factorization.

21476196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85240 (or 85235 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 21476196 is about 4634.2416855404. The cubic root of 21476196 is about 277.9622293974.

The spelling of 21476196 in words is "twenty-one million, four hundred seventy-six thousand, one hundred ninety-six".