20236498 has 4 divisors (see below), whose sum is σ = 30354750. Its totient is φ = 10118248.

The previous prime is 20236457. The next prime is 20236499. The reversal of 20236498 is 89463202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17698849 + 2537649 = 4207^2 + 1593^2 .

It is not an unprimeable number, because it can be changed into a prime (20236499) by changing a digit.

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 as a sum of consecutive naturals, namely, 5059123 + ... + 5059126.

Almost surely, 2^20236498 is an apocalyptic number.

20236498 is a deficient number, since it is larger than the sum of its proper divisors (10118252).

20236498 is a wasteful number, since it uses less digits than its factorization.

20236498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10118251.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 20236498 is about 4498.4995276203. The cubic root of 20236498 is about 272.5074957958.

The spelling of 20236498 in words is "twenty million, two hundred thirty-six thousand, four hundred ninety-eight".