21419192 has 16 divisors (see below), whose sum is σ = 40294800. Its totient is φ = 10673920.

The previous prime is 21419173. The next prime is 21419207. The reversal of 21419192 is 29191412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1817 + ... + 6792.

It is an arithmetic number, because the mean of its divisors is an integer number (2518425).

Almost surely, 2^21419192 is an apocalyptic number.

It is an amenable number.

21419192 is a deficient number, since it is larger than the sum of its proper divisors (18875608).

21419192 is a wasteful number, since it uses less digits than its factorization.

21419192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8926 (or 8922 counting only the distinct ones).

The product of its digits is 1296, while the sum is 29.

The square root of 21419192 is about 4628.0872939045. The cubic root of 21419192 is about 277.7160809228.

The spelling of 21419192 in words is "twenty-one million, four hundred nineteen thousand, one hundred ninety-two".