21484462 has 4 divisors (see below), whose sum is σ = 32226696. Its totient is φ = 10742230.

The previous prime is 21484453. The next prime is 21484469. The reversal of 21484462 is 26448412.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21484469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5371114 + ... + 5371117.

It is an arithmetic number, because the mean of its divisors is an integer number (8056674).

Almost surely, 2^21484462 is an apocalyptic number.

21484462 is a deficient number, since it is larger than the sum of its proper divisors (10742234).

21484462 is a wasteful number, since it uses less digits than its factorization.

21484462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10742233.

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

The square root of 21484462 is about 4635.1334392874. The cubic root of 21484462 is about 277.9978865668.

The spelling of 21484462 in words is "twenty-one million, four hundred eighty-four thousand, four hundred sixty-two".