21829092 has 24 divisors (see below), whose sum is σ = 51653952. Its totient is φ = 7173600.

The previous prime is 21829091. The next prime is 21829121. The reversal of 21829092 is 29092812.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21829091) 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, 11959 + ... + 13662.

It is an arithmetic number, because the mean of its divisors is an integer number (2152248).

Almost surely, 2^21829092 is an apocalyptic number.

It is an amenable number.

21829092 is an abundant number, since it is smaller than the sum of its proper divisors (29824860).

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

21829092 is a wasteful number, since it uses less digits than its factorization.

21829092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25699 (or 25697 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 21829092 is about 4672.1613841990. The cubic root of 21829092 is about 279.4764536516.

The spelling of 21829092 in words is "twenty-one million, eight hundred twenty-nine thousand, ninety-two".