20498102 has 4 divisors (see below), whose sum is σ = 30747156. Its totient is φ = 10249050.

The previous prime is 20498059. The next prime is 20498117. The reversal of 20498102 is 20189402.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5124524 + ... + 5124527.

It is an arithmetic number, because the mean of its divisors is an integer number (7686789).

Almost surely, 2^20498102 is an apocalyptic number.

20498102 is a deficient number, since it is larger than the sum of its proper divisors (10249054).

20498102 is a wasteful number, since it uses less digits than its factorization.

20498102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10249053.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 20498102 is about 4527.4829651805. The cubic root of 20498102 is about 273.6767370649.

The spelling of 20498102 in words is "twenty million, four hundred ninety-eight thousand, one hundred two".