21734652 has 24 divisors (see below), whose sum is σ = 50794576. Its totient is φ = 7233408.

The previous prime is 21734621. The next prime is 21734681. The reversal of 21734652 is 25643712.

It is a super-2 number, since 2×21734652² = 944790195122208, which contains 22 as substring.

It is a congruent number.

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, 10278 + ... + 12210.

Almost surely, 2^21734652 is an apocalyptic number.

It is an amenable number.

21734652 is an abundant number, since it is smaller than the sum of its proper divisors (29059924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21734652 is a wasteful number, since it uses less digits than its factorization.

21734652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877 (or 2875 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 21734652 is about 4662.0437578384. The cubic root of 21734652 is about 279.0728346220.

The spelling of 21734652 in words is "twenty-one million, seven hundred thirty-four thousand, six hundred fifty-two".