1063281820 has 12 divisors (see below), whose sum is σ = 2232891864. Its totient is φ = 425312720.

The previous prime is 1063281787. The next prime is 1063281829. The reversal of 1063281820 is 281823601.

1063281820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1063281820² = 2261136457485024800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1063281829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26582026 + ... + 26582065.

It is an arithmetic number, because the mean of its divisors is an integer number (186074322).

Almost surely, 2^1063281820 is an apocalyptic number.

1063281820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1063281820 is an abundant number, since it is smaller than the sum of its proper divisors (1169610044).

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

1063281820 is a wasteful number, since it uses less digits than its factorization.

1063281820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53164100 (or 53164098 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 1063281820 is about 32608.0023920509. The cubic root of 1063281820 is about 1020.6639980051.

The spelling of 1063281820 in words is "one billion, sixty-three million, two hundred eighty-one thousand, eight hundred twenty".