21924102 has 8 divisors (see below), whose sum is σ = 43848216. Its totient is φ = 7308032.

The previous prime is 21924073. The next prime is 21924107. The reversal of 21924102 is 20142912.

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

21924102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21924107) 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, 1827003 + ... + 1827014.

It is an arithmetic number, because the mean of its divisors is an integer number (5481027).

Almost surely, 2^21924102 is an apocalyptic number.

21924102 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.

21924102 is a wasteful number, since it uses less digits than its factorization.

21924102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3654022.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 21924102 is about 4682.3180156841. The cubic root of 21924102 is about 279.8813357715.

The spelling of 21924102 in words is "twenty-one million, nine hundred twenty-four thousand, one hundred two".