406077816 has 16 divisors (see below), whose sum is σ = 1015194600. Its totient is φ = 135359264.

The previous prime is 406077799. The next prime is 406077829. The reversal of 406077816 is 618770604.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 8459931 + ... + 8459978.

Almost surely, 2^406077816 is an apocalyptic number.

It is an amenable number.

406077816 is an abundant number, since it is smaller than the sum of its proper divisors (609116784).

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

406077816 is a wasteful number, since it uses less digits than its factorization.

406077816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16919918 (or 16919914 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 406077816 is about 20151.3725587117. The cubic root of 406077816 is about 740.5193675622.

The spelling of 406077816 in words is "four hundred six million, seventy-seven thousand, eight hundred sixteen".