21769014 has 8 divisors (see below), whose sum is σ = 43538040. Its totient is φ = 7256336.

The previous prime is 21768997. The next prime is 21769039. The reversal of 21769014 is 41096712.

It is a happy number.

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

21769014 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1814079 + ... + 1814090.

It is an arithmetic number, because the mean of its divisors is an integer number (5442255).

Almost surely, 2^21769014 is an apocalyptic number.

21769014 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.

21769014 is a wasteful number, since it uses less digits than its factorization.

21769014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628174.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 21769014 is about 4665.7275959919. The cubic root of 21769014 is about 279.2198264944.

The spelling of 21769014 in words is "twenty-one million, seven hundred sixty-nine thousand, fourteen".