1563040020 has 48 divisors (see below), whose sum is σ = 4392134208. Its totient is φ = 415322880.

The previous prime is 1563039979. The next prime is 1563040021. The reversal of 1563040020 is 200403651.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563040021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29494 + ... + 63213.

It is an arithmetic number, because the mean of its divisors is an integer number (91502796).

Almost surely, 2^1563040020 is an apocalyptic number.

1563040020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1563040020 is an abundant number, since it is smaller than the sum of its proper divisors (2829094188).

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

1563040020 is a wasteful number, since it uses less digits than its factorization.

1563040020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93000 (or 92998 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1563040020 is about 39535.3009347343. The cubic root of 1563040020 is about 1160.5308757148.

Adding to 1563040020 its reverse (200403651), we get a palindrome (1763443671).

The spelling of 1563040020 in words is "one billion, five hundred sixty-three million, forty thousand, twenty".