499406408 has 12 divisors (see below), whose sum is σ = 936505545. Its totient is φ = 249671600.

The previous prime is 499406233. The next prime is 499406437. The reversal of 499406408 is 804604994.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 481275844 + 18130564 = 21938^2 + 4258^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=15802.

It is a Duffinian 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 in 2 ways as a sum of consecutive naturals, for example, 59258 + ... + 67158.

Almost surely, 2^499406408 is an apocalyptic number.

It is an amenable number.

499406408 is a deficient number, since it is larger than the sum of its proper divisors (437099137).

499406408 is an frugal number, since it uses more digits than its factorization.

499406408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15808 (or 7903 counting only the distinct ones).

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

The square root of 499406408 is about 22347.4027126196. The cubic root of 499406408 is about 793.3863120863.

The spelling of 499406408 in words is "four hundred ninety-nine million, four hundred six thousand, four hundred eight".