21654096 has 40 divisors (see below), whose sum is σ = 56127360. Its totient is φ = 7193856.

The previous prime is 21654071. The next prime is 21654103. The reversal of 21654096 is 69045612.

It is a congruent number.

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, 19081 + ... + 20183.

It is an arithmetic number, because the mean of its divisors is an integer number (1403184).

Almost surely, 2^21654096 is an apocalyptic number.

It is an amenable number.

21654096 is an abundant number, since it is smaller than the sum of its proper divisors (34473264).

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

21654096 is a wasteful number, since it uses less digits than its factorization.

21654096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523 (or 1517 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 21654096 is about 4653.3961791363. The cubic root of 21654096 is about 278.7276282259.

The spelling of 21654096 in words is "twenty-one million, six hundred fifty-four thousand, ninety-six".