21848601 has 8 divisors (see below), whose sum is σ = 29809120. Its totient is φ = 14226912.

The previous prime is 21848581. The next prime is 21848609. The reversal of 21848601 is 10684812.

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

It is not a de Polignac number, because 21848601 - 2⁷ = 21848473 is a prime.

It is a super-2 number, since 2×21848601² = 954722731314402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21848609) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 84556 + ... + 84813.

It is an arithmetic number, because the mean of its divisors is an integer number (3726140).

Almost surely, 2^21848601 is an apocalyptic number.

It is an amenable number.

21848601 is a deficient number, since it is larger than the sum of its proper divisors (7960519).

21848601 is a wasteful number, since it uses less digits than its factorization.

21848601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169415.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 21848601 is about 4674.2487096859. The cubic root of 21848601 is about 279.5596863496.

The spelling of 21848601 in words is "twenty-one million, eight hundred forty-eight thousand, six hundred one".