21450482 has 8 divisors (see below), whose sum is σ = 32368896. Its totient is φ = 10660852.

The previous prime is 21450479. The next prime is 21450493. The reversal of 21450482 is 28405412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31778 + ... + 32445.

It is an arithmetic number, because the mean of its divisors is an integer number (4046112).

Almost surely, 2^21450482 is an apocalyptic number.

21450482 is a deficient number, since it is larger than the sum of its proper divisors (10918414).

21450482 is a wasteful number, since it uses less digits than its factorization.

21450482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64392.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 21450482 is about 4631.4665064103. The cubic root of 21450482 is about 277.8512479911.

Adding to 21450482 its reverse (28405412), we get a palindrome (49855894).

The spelling of 21450482 in words is "twenty-one million, four hundred fifty thousand, four hundred eighty-two".