21294614 has 8 divisors (see below), whose sum is σ = 34845768. Its totient is φ = 9679360.

The previous prime is 21294587. The next prime is 21294617. The reversal of 21294614 is 41649212.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21294617) 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, 483947 + ... + 483990.

It is an arithmetic number, because the mean of its divisors is an integer number (4355721).

Almost surely, 2^21294614 is an apocalyptic number.

21294614 is a deficient number, since it is larger than the sum of its proper divisors (13551154).

21294614 is a wasteful number, since it uses less digits than its factorization.

21294614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967950.

The product of its digits is 3456, while the sum is 29.

The square root of 21294614 is about 4614.6087591474. The cubic root of 21294614 is about 277.1766175869.

The spelling of 21294614 in words is "twenty-one million, two hundred ninety-four thousand, six hundred fourteen".