1563494346 has 16 divisors (see below), whose sum is σ = 3474432000. Its totient is φ = 521164764.

The previous prime is 1563494327. The next prime is 1563494347. The reversal of 1563494346 is 6434943651.

1563494346 is a `hidden beast` number, since 1 + 5 + 634 + 9 + 4 + 3 + 4 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (1563494347) 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, 14476746 + ... + 14476853.

It is an arithmetic number, because the mean of its divisors is an integer number (217152000).

Almost surely, 2^1563494346 is an apocalyptic number.

1563494346 is an abundant number, since it is smaller than the sum of its proper divisors (1910937654).

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

1563494346 is a wasteful number, since it uses less digits than its factorization.

1563494346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28953610 (or 28953604 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The square root of 1563494346 is about 39541.0463442737. The cubic root of 1563494346 is about 1160.6433079550.

The spelling of 1563494346 in words is "one billion, five hundred sixty-three million, four hundred ninety-four thousand, three hundred forty-six".