21736914 has 32 divisors (see below), whose sum is σ = 46500480. Its totient is φ = 6749952.

The previous prime is 21736879. The next prime is 21736933. The reversal of 21736914 is 41963712.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9472 + ... + 11540.

It is an arithmetic number, because the mean of its divisors is an integer number (1453140).

Almost surely, 2^21736914 is an apocalyptic number.

21736914 is an abundant number, since it is smaller than the sum of its proper divisors (24763566).

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

21736914 is a wasteful number, since it uses less digits than its factorization.

21736914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2194.

The product of its digits is 9072, while the sum is 33.

The square root of 21736914 is about 4662.2863489923. The cubic root of 21736914 is about 279.0825156428.

The spelling of 21736914 in words is "twenty-one million, seven hundred thirty-six thousand, nine hundred fourteen".