21460034 has 16 divisors (see below), whose sum is σ = 33073920. Its totient is φ = 10439520.

The previous prime is 21460007. The next prime is 21460057. The reversal of 21460034 is 43006412.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21459988 and 21460015.

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 7 ways as a sum of consecutive naturals, for example, 10262 + ... + 12174.

It is an arithmetic number, because the mean of its divisors is an integer number (2067120).

Almost surely, 2^21460034 is an apocalyptic number.

21460034 is a deficient number, since it is larger than the sum of its proper divisors (11613886).

21460034 is a wasteful number, since it uses less digits than its factorization.

21460034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 21460034 is about 4632.4975984883. The cubic root of 21460034 is about 277.8924846910.

Adding to 21460034 its reverse (43006412), we get a palindrome (64466446).

The spelling of 21460034 in words is "twenty-one million, four hundred sixty thousand, thirty-four".