21464414 has 16 divisors (see below), whose sum is σ = 34214400. Its totient is φ = 10070424.

The previous prime is 21464411. The next prime is 21464423. The reversal of 21464414 is 41446412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21464411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1427 + ... + 6705.

It is an arithmetic number, because the mean of its divisors is an integer number (2138400).

Almost surely, 2^21464414 is an apocalyptic number.

21464414 is a deficient number, since it is larger than the sum of its proper divisors (12749986).

21464414 is a wasteful number, since it uses less digits than its factorization.

21464414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407.

The product of its digits is 3072, while the sum is 26.

The square root of 21464414 is about 4632.9703215108. The cubic root of 21464414 is about 277.9113893875.

The spelling of 21464414 in words is "twenty-one million, four hundred sixty-four thousand, four hundred fourteen".