21095426 has 8 divisors (see below), whose sum is σ = 34519824. Its totient is φ = 9588820.

The previous prime is 21095423. The next prime is 21095429. The reversal of 21095426 is 62459012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21095423) and next prime (21095429).

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

It is not an unprimeable number, because it can be changed into a prime (21095423) 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, 479420 + ... + 479463.

It is an arithmetic number, because the mean of its divisors is an integer number (4314978).

Almost surely, 2^21095426 is an apocalyptic number.

21095426 is a deficient number, since it is larger than the sum of its proper divisors (13424398).

21095426 is a wasteful number, since it uses less digits than its factorization.

21095426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958896.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 21095426 is about 4592.9757238636. The cubic root of 21095426 is about 276.3096800552.

The spelling of 21095426 in words is "twenty-one million, ninety-five thousand, four hundred twenty-six".