21462116 has 24 divisors (see below), whose sum is σ = 40623744. Its totient is φ = 9862560.

The previous prime is 21462107. The next prime is 21462131. The reversal of 21462116 is 61126412.

It is a junction number, because it is equal to n+sod(n) for n = 21462091 and 21462100.

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 7 ways as a sum of consecutive naturals, for example, 13331 + ... + 14853.

It is an arithmetic number, because the mean of its divisors is an integer number (1692656).

Almost surely, 2^21462116 is an apocalyptic number.

21462116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

21462116 is a deficient number, since it is larger than the sum of its proper divisors (19161628).

21462116 is a wasteful number, since it uses less digits than its factorization.

21462116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811 (or 1809 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 21462116 is about 4632.7223098304. The cubic root of 21462116 is about 277.9014712168.

Adding to 21462116 its reverse (61126412), we get a palindrome (82588528).

The spelling of 21462116 in words is "twenty-one million, four hundred sixty-two thousand, one hundred sixteen".