1063745280 has 216 divisors, whose sum is σ = 3964117248. Its totient is φ = 261808128.

The previous prime is 1063745273. The next prime is 1063745297. The reversal of 1063745280 is 825473601.

1063745280 is a `hidden beast` number, since 1 + 0 + 6 + 374 + 5 + 280 = 666.

It is a super-2 number, since 2×1063745280² = 2263108041444556800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146209 + ... + 153311.

Almost surely, 2^1063745280 is an apocalyptic number.

1063745280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1063745280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1982058624).

1063745280 is an abundant number, since it is smaller than the sum of its proper divisors (2900371968).

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

1063745280 is a wasteful number, since it uses less digits than its factorization.

1063745280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7143 (or 7126 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1063745280 is about 32615.1081555772. The cubic root of 1063745280 is about 1020.8122710893.

The spelling of 1063745280 in words is "one billion, sixty-three million, seven hundred forty-five thousand, two hundred eighty".