20485298 has 4 divisors (see below), whose sum is σ = 30727950. Its totient is φ = 10242648.

The previous prime is 20485277. The next prime is 20485301. The reversal of 20485298 is 89258402.

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., 13446889 + 7038409 = 3667^2 + 2653^2 .

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 as a sum of consecutive naturals, namely, 5121323 + ... + 5121326.

Almost surely, 2^20485298 is an apocalyptic number.

20485298 is a deficient number, since it is larger than the sum of its proper divisors (10242652).

20485298 is a wasteful number, since it uses less digits than its factorization.

20485298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10242651.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 20485298 is about 4526.0687135747. The cubic root of 20485298 is about 273.6197417586.

The spelling of 20485298 in words is "twenty million, four hundred eighty-five thousand, two hundred ninety-eight".