21230098 has 8 divisors (see below), whose sum is σ = 32041008. Its totient is φ = 10549764.

The previous prime is 21230047. The next prime is 21230123. The reversal of 21230098 is 89003212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21230098² = 901434122179208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32236 + ... + 32887.

It is an arithmetic number, because the mean of its divisors is an integer number (4005126).

Almost surely, 2^21230098 is an apocalyptic number.

21230098 is a deficient number, since it is larger than the sum of its proper divisors (10810910).

21230098 is a wasteful number, since it uses less digits than its factorization.

21230098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65288.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 21230098 is about 4607.6130479892. The cubic root of 21230098 is about 276.8964150217.

The spelling of 21230098 in words is "twenty-one million, two hundred thirty thousand, ninety-eight".