498402009 has 12 divisors (see below), whose sum is σ = 822758976. Its totient is φ = 284801112.

The previous prime is 498402001. The next prime is 498402013. The reversal of 498402009 is 900204894.

It is a happy number.

It is not a de Polignac number, because 498402009 - 2³ = 498402001 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (498402001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3955509 + ... + 3955634.

It is an arithmetic number, because the mean of its divisors is an integer number (68563248).

Almost surely, 2^498402009 is an apocalyptic number.

It is an amenable number.

498402009 is a deficient number, since it is larger than the sum of its proper divisors (324356967).

498402009 is a wasteful number, since it uses less digits than its factorization.

498402009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7911156 (or 7911153 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 498402009 is about 22324.9190144108. The cubic root of 498402009 is about 792.8540727280.

The spelling of 498402009 in words is "four hundred ninety-eight million, four hundred two thousand, nine".