498426209 has 4 divisors (see below), whose sum is σ = 498504240. Its totient is φ = 498348180.

The previous prime is 498426197. The next prime is 498426233. The reversal of 498426209 is 902624894.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 498426209 - 2⁴ = 498426193 is a prime.

It is a super-2 number, since 2×498426209² = 496857371636223362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 498426209.

It is not an unprimeable number, because it can be changed into a prime (498426239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28487 + ... + 42524.

It is an arithmetic number, because the mean of its divisors is an integer number (124626060).

Almost surely, 2^498426209 is an apocalyptic number.

It is an amenable number.

498426209 is a deficient number, since it is larger than the sum of its proper divisors (78031).

498426209 is an equidigital number, since it uses as much as digits as its factorization.

498426209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78030.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 498426209 is about 22325.4610030790. The cubic root of 498426209 is about 792.8669049115.

The spelling of 498426209 in words is "four hundred ninety-eight million, four hundred twenty-six thousand, two hundred nine".