21914754 has 8 divisors (see below), whose sum is σ = 43829520. Its totient is φ = 7304916.

The previous prime is 21914743. The next prime is 21914759. The reversal of 21914754 is 45741912.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

21914754 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21914759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1826224 + ... + 1826235.

It is an arithmetic number, because the mean of its divisors is an integer number (5478690).

Almost surely, 2^21914754 is an apocalyptic number.

21914754 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21914754 is a wasteful number, since it uses less digits than its factorization.

21914754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3652464.

The product of its digits is 10080, while the sum is 33.

The square root of 21914754 is about 4681.3196857297. The cubic root of 21914754 is about 279.8415515094.

The spelling of 21914754 in words is "twenty-one million, nine hundred fourteen thousand, seven hundred fifty-four".