1563996384 has 192 divisors, whose sum is σ = 4683631680. Its totient is φ = 507617280.

The previous prime is 1563996359. The next prime is 1563996403. The reversal of 1563996384 is 4836993651.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1563996384.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8640774 + ... + 8640954.

It is an arithmetic number, because the mean of its divisors is an integer number (24393915).

Almost surely, 2^1563996384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1563996384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2341815840).

1563996384 is an abundant number, since it is smaller than the sum of its proper divisors (3119635296).

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

1563996384 is a wasteful number, since it uses less digits than its factorization.

1563996384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 396 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The square root of 1563996384 is about 39547.3941492989. The cubic root of 1563996384 is about 1160.7675221744.

The spelling of 1563996384 in words is "one billion, five hundred sixty-three million, nine hundred ninety-six thousand, three hundred eighty-four".