21448106 has 16 divisors (see below), whose sum is σ = 32902848. Its totient is φ = 10483200.

The previous prime is 21448079. The next prime is 21448127. The reversal of 21448106 is 60184412.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18026 + ... + 19178.

It is an arithmetic number, because the mean of its divisors is an integer number (2056428).

Almost surely, 2^21448106 is an apocalyptic number.

21448106 is a deficient number, since it is larger than the sum of its proper divisors (11454742).

21448106 is a wasteful number, since it uses less digits than its factorization.

21448106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 21448106 is about 4631.2099930796. The cubic root of 21448106 is about 277.8409887199.

The spelling of 21448106 in words is "twenty-one million, four hundred forty-eight thousand, one hundred six".