21795088 has 40 divisors (see below), whose sum is σ = 51103872. Its totient is φ = 8790528.

The previous prime is 21795079. The next prime is 21795113. The reversal of 21795088 is 88059712.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 21795088.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3820 + ... + 7627.

Almost surely, 2^21795088 is an apocalyptic number.

21795088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

21795088 is an abundant number, since it is smaller than the sum of its proper divisors (29308784).

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

21795088 is a wasteful number, since it uses less digits than its factorization.

21795088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11479 (or 11473 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 21795088 is about 4668.5209649310. The cubic root of 21795088 is about 279.3312612303.

The spelling of 21795088 in words is "twenty-one million, seven hundred ninety-five thousand, eighty-eight".