21834298 has 16 divisors (see below), whose sum is σ = 33225984. Its totient is φ = 10760400.

The previous prime is 21834277. The next prime is 21834331. The reversal of 21834298 is 89243812.

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, 59311 + ... + 59677.

It is an arithmetic number, because the mean of its divisors is an integer number (2076624).

Almost surely, 2^21834298 is an apocalyptic number.

21834298 is a deficient number, since it is larger than the sum of its proper divisors (11391686).

21834298 is a wasteful number, since it uses less digits than its factorization.

21834298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717.

The product of its digits is 27648, while the sum is 37.

The square root of 21834298 is about 4672.7184807133. The cubic root of 21834298 is about 279.4986692461.

The spelling of 21834298 in words is "twenty-one million, eight hundred thirty-four thousand, two hundred ninety-eight".