21095088 has 60 divisors (see below), whose sum is σ = 63399960. Its totient is φ = 6026496.

The previous prime is 21095083. The next prime is 21095099. The reversal of 21095088 is 88059012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21095083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2133 + ... + 6836.

It is an arithmetic number, because the mean of its divisors is an integer number (1056666).

Almost surely, 2^21095088 is an apocalyptic number.

21095088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

21095088 is an abundant number, since it is smaller than the sum of its proper divisors (42304872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21095088 is a wasteful number, since it uses less digits than its factorization.

21095088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8994 (or 8981 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 21095088 is about 4592.9389283987. The cubic root of 21095088 is about 276.3082043298.

The spelling of 21095088 in words is "twenty-one million, ninety-five thousand, eighty-eight".