21476106 has 24 divisors (see below), whose sum is σ = 46672704. Its totient is φ = 7137000.

The previous prime is 21476053. The next prime is 21476107. The reversal of 21476106 is 60167412.

21476106 is a `hidden beast` number, since 2 + 1 + 47 + 610 + 6 = 666.

It is a super-2 number, since 2×21476106² = 922446257846472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21476106.

It is not an unprimeable number, because it can be changed into a prime (21476107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4981 + ... + 8231.

It is an arithmetic number, because the mean of its divisors is an integer number (1944696).

Almost surely, 2^21476106 is an apocalyptic number.

21476106 is an abundant number, since it is smaller than the sum of its proper divisors (25196598).

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

21476106 is a wasteful number, since it uses less digits than its factorization.

21476106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3626 (or 3623 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 21476106 is about 4634.2319752037. The cubic root of 21476106 is about 277.9618411127.

The spelling of 21476106 in words is "twenty-one million, four hundred seventy-six thousand, one hundred six".