21464482 has 32 divisors (see below), whose sum is σ = 36102528. Its totient is φ = 9507456.

The previous prime is 21464473. The next prime is 21464491. The reversal of 21464482 is 28446412.

It is an interprime number because it is at equal distance from previous prime (21464473) and next prime (21464491).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81483 + ... + 81745.

It is an arithmetic number, because the mean of its divisors is an integer number (1128204).

Almost surely, 2^21464482 is an apocalyptic number.

21464482 is a deficient number, since it is larger than the sum of its proper divisors (14638046).

21464482 is a wasteful number, since it uses less digits than its factorization.

21464482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394.

The product of its digits is 12288, while the sum is 31.

The square root of 21464482 is about 4632.9776602095. The cubic root of 21464482 is about 277.9116828648.

The spelling of 21464482 in words is "twenty-one million, four hundred sixty-four thousand, four hundred eighty-two".