21448034 has 8 divisors (see below), whose sum is σ = 32717520. Its totient is φ = 10542196.

The previous prime is 21448003. The next prime is 21448051. The reversal of 21448034 is 43084412.

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

It is a junction number, because it is equal to n+sod(n) for n = 21447994 and 21448012.

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 3 ways as a sum of consecutive naturals, for example, 90764 + ... + 90999.

It is an arithmetic number, because the mean of its divisors is an integer number (4089690).

Almost surely, 2^21448034 is an apocalyptic number.

21448034 is a deficient number, since it is larger than the sum of its proper divisors (11269486).

21448034 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 21448034 = (44320148)₉.

21448034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181824.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 21448034 is about 4631.2022197265. The cubic root of 21448034 is about 277.8406778210.

The spelling of 21448034 in words is "twenty-one million, four hundred forty-eight thousand, thirty-four".