20430098 has 8 divisors (see below), whose sum is σ = 33002508. Its totient is φ = 9429264.

The previous prime is 20430083. The next prime is 20430121. The reversal of 20430098 is 89003402.

It can be written as a sum of positive squares in 2 ways, for example, as 20187049 + 243049 = 4493^2 + 493^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 785773 = 20430098 / (2 + 0 + 4 + 3 + 0 + 0 + 9 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392861 + ... + 392912.

Almost surely, 2^20430098 is an apocalyptic number.

20430098 is a deficient number, since it is larger than the sum of its proper divisors (12572410).

20430098 is a wasteful number, since it uses less digits than its factorization.

20430098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785788.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20430098 is about 4519.9665927969. The cubic root of 20430098 is about 273.3737540196.

The spelling of 20430098 in words is "twenty million, four hundred thirty thousand, ninety-eight".