1063445400 has 144 divisors (see below), whose sum is σ = 3590730000. Its totient is φ = 282051840.

The previous prime is 1063445393. The next prime is 1063445417. The reversal of 1063445400 is 45443601.

It is a super-2 number, since 2×1063445400² = 2261832237562320000, which contains 22 as substring.

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 35 ways as a sum of consecutive naturals, for example, 353101 + ... + 356099.

It is an arithmetic number, because the mean of its divisors is an integer number (24935625).

Almost surely, 2^1063445400 is an apocalyptic number.

1063445400 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 1063445400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1795365000).

1063445400 is an abundant number, since it is smaller than the sum of its proper divisors (2527284600).

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

1063445400 is a wasteful number, since it uses less digits than its factorization.

1063445400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218 (or 3206 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1063445400 is about 32610.5105755798. The cubic root of 1063445400 is about 1020.7163364829.

The spelling of 1063445400 in words is "one billion, sixty-three million, four hundred forty-five thousand, four hundred".