1563394382 has 16 divisors (see below), whose sum is σ = 2574582192. Its totient is φ = 706105920.

The previous prime is 1563394373. The next prime is 1563394421. The reversal of 1563394382 is 2834933651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222863 + ... + 229770.

It is an arithmetic number, because the mean of its divisors is an integer number (160911387).

Almost surely, 2^1563394382 is an apocalyptic number.

1563394382 is a deficient number, since it is larger than the sum of its proper divisors (1011187810).

1563394382 is a wasteful number, since it uses less digits than its factorization.

1563394382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452803.

The product of its digits is 466560, while the sum is 44.

The square root of 1563394382 is about 39539.7822705184. The cubic root of 1563394382 is about 1160.6185716923.

The spelling of 1563394382 in words is "one billion, five hundred sixty-three million, three hundred ninety-four thousand, three hundred eighty-two".