21415096 has 8 divisors (see below), whose sum is σ = 40153320. Its totient is φ = 10707544.

The previous prime is 21415081. The next prime is 21415099. The reversal of 21415096 is 69051412.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21415099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1338436 + ... + 1338451.

It is an arithmetic number, because the mean of its divisors is an integer number (5019165).

Almost surely, 2^21415096 is an apocalyptic number.

It is an amenable number.

21415096 is a deficient number, since it is larger than the sum of its proper divisors (18738224).

21415096 is a wasteful number, since it uses less digits than its factorization.

21415096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676893 (or 2676889 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 21415096 is about 4627.6447573253. The cubic root of 21415096 is about 277.6983772113.

The spelling of 21415096 in words is "twenty-one million, four hundred fifteen thousand, ninety-six".