21034192 has 40 divisors (see below), whose sum is σ = 42247296. Its totient is φ = 10139136.

The previous prime is 21034187. The next prime is 21034199. The reversal of 21034192 is 29143012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21034199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62248 + ... + 62584.

Almost surely, 2^21034192 is an apocalyptic number.

It is an amenable number.

21034192 is an abundant number, since it is smaller than the sum of its proper divisors (21213104).

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

21034192 is a wasteful number, since it uses less digits than its factorization.

21034192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 21034192 is about 4586.3048306889. The cubic root of 21034192 is about 276.0420715814.

The spelling of 21034192 in words is "twenty-one million, thirty-four thousand, one hundred ninety-two".