21339098 has 32 divisors (see below), whose sum is σ = 36661248. Its totient is φ = 9226800.

The previous prime is 21339091. The next prime is 21339103. The reversal of 21339098 is 89093312.

It is not an unprimeable number, because it can be changed into a prime (21339091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45461 + ... + 45927.

It is an arithmetic number, because the mean of its divisors is an integer number (1145664).

Almost surely, 2^21339098 is an apocalyptic number.

21339098 is a deficient number, since it is larger than the sum of its proper divisors (15322150).

21339098 is a wasteful number, since it uses less digits than its factorization.

21339098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 21339098 is about 4619.4261548378. The cubic root of 21339098 is about 277.3694887194.

The spelling of 21339098 in words is "twenty-one million, three hundred thirty-nine thousand, ninety-eight".