21460414 has 8 divisors (see below), whose sum is σ = 32238648. Its totient is φ = 10714200.

The previous prime is 21460393. The next prime is 21460423. The reversal of 21460414 is 41406412.

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

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, 6252 + ... + 9055.

It is an arithmetic number, because the mean of its divisors is an integer number (4029831).

Almost surely, 2^21460414 is an apocalyptic number.

21460414 is a deficient number, since it is larger than the sum of its proper divisors (10778234).

21460414 is a wasteful number, since it uses less digits than its factorization.

21460414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16010.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 21460414 is about 4632.5386128990. The cubic root of 21460414 is about 277.8941249264.

Adding to 21460414 its reverse (41406412), we get a palindrome (62866826).

The spelling of 21460414 in words is "twenty-one million, four hundred sixty thousand, four hundred fourteen".