1634454916 has 12 divisors (see below), whose sum is σ = 2914264332. Its totient is φ = 801807968.

The previous prime is 1634454869. The next prime is 1634454973. The reversal of 1634454916 is 6194544361.

It can be written as a sum of positive squares in 2 ways, for example, as 1463368516 + 171086400 = 38254^2 + 13080^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3854635 + ... + 3855058.

It is an arithmetic number, because the mean of its divisors is an integer number (242855361).

Almost surely, 2^1634454916 is an apocalyptic number.

It is an amenable number.

1634454916 is a deficient number, since it is larger than the sum of its proper divisors (1279809416).

1634454916 is a wasteful number, since it uses less digits than its factorization.

1634454916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7709750 (or 7709748 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 1634454916 is about 40428.3924488719. The cubic root of 1634454916 is about 1177.9431072591.

The spelling of 1634454916 in words is "one billion, six hundred thirty-four million, four hundred fifty-four thousand, nine hundred sixteen".