21234034 has 8 divisors (see below), whose sum is σ = 31992048. Its totient is φ = 10570020.

The previous prime is 21234029. The next prime is 21234049. The reversal of 21234034 is 43043212.

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, 22932 + ... + 23839.

It is an arithmetic number, because the mean of its divisors is an integer number (3999006).

Almost surely, 2^21234034 is an apocalyptic number.

21234034 is a deficient number, since it is larger than the sum of its proper divisors (10758014).

21234034 is a wasteful number, since it uses less digits than its factorization.

21234034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47000.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 21234034 is about 4608.0401473946. The cubic root of 21234034 is about 276.9135259012.

Adding to 21234034 its reverse (43043212), we get a palindrome (64277246).

The spelling of 21234034 in words is "twenty-one million, two hundred thirty-four thousand, thirty-four".