816303408 has 40 divisors (see below), whose sum is σ = 2176813056. Its totient is φ = 263323200.

The previous prime is 816303407. The next prime is 816303421. The reversal of 816303408 is 804303618.

It is not an unprimeable number, because it can be changed into a prime (816303407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272808 + ... + 275783.

Almost surely, 2^816303408 is an apocalyptic number.

It is an amenable number.

816303408 is an abundant number, since it is smaller than the sum of its proper divisors (1360509648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

816303408 is a wasteful number, since it uses less digits than its factorization.

816303408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548633 (or 548627 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 816303408 is about 28571.0239228488. The cubic root of 816303408 is about 934.5815501032.

The spelling of 816303408 in words is "eight hundred sixteen million, three hundred three thousand, four hundred eight".