21483434 has 32 divisors (see below), whose sum is σ = 38707200. Its totient is φ = 8748720.

The previous prime is 21483419. The next prime is 21483437. The reversal of 21483434 is 43438412.

It is a junction number, because it is equal to n+sod(n) for n = 21483397 and 21483406.

It is not an unprimeable number, because it can be changed into a prime (21483437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25187 + ... + 26025.

It is an arithmetic number, because the mean of its divisors is an integer number (1209600).

Almost surely, 2^21483434 is an apocalyptic number.

21483434 is a deficient number, since it is larger than the sum of its proper divisors (17223766).

21483434 is a wasteful number, since it uses less digits than its factorization.

21483434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938.

The product of its digits is 9216, while the sum is 29.

The square root of 21483434 is about 4635.0225457920. The cubic root of 21483434 is about 277.9934525656.

The spelling of 21483434 in words is "twenty-one million, four hundred eighty-three thousand, four hundred thirty-four".