21295914 has 8 divisors (see below), whose sum is σ = 42591840. Its totient is φ = 7098636.

The previous prime is 21295913. The next prime is 21295961. The reversal of 21295914 is 41959212.

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

21295914 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (21295913) 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, 1774654 + ... + 1774665.

It is an arithmetic number, because the mean of its divisors is an integer number (5323980).

Almost surely, 2^21295914 is an apocalyptic number.

21295914 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.

21295914 is a wasteful number, since it uses less digits than its factorization.

21295914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549324.

The product of its digits is 6480, while the sum is 33.

The square root of 21295914 is about 4614.7496140094. The cubic root of 21295914 is about 277.1822578593.

The spelling of 21295914 in words is "twenty-one million, two hundred ninety-five thousand, nine hundred fourteen".