21035674 has 16 divisors (see below), whose sum is σ = 34766496. Its totient is φ = 9466000.

The previous prime is 21035633. The next prime is 21035687. The reversal of 21035674 is 47653012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2512 + ... + 6955.

It is an arithmetic number, because the mean of its divisors is an integer number (2172906).

Almost surely, 2^21035674 is an apocalyptic number.

21035674 is a deficient number, since it is larger than the sum of its proper divisors (13730822).

21035674 is a wasteful number, since it uses less digits than its factorization.

21035674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9581.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 21035674 is about 4586.4663958215. The cubic root of 21035674 is about 276.0485544347.

Adding to 21035674 its reverse (47653012), we get a palindrome (68688686).

It can be divided in two parts, 2103 and 5674, that added together give a palindrome (7777).

The spelling of 21035674 in words is "twenty-one million, thirty-five thousand, six hundred seventy-four".