1063574640 has 60 divisors (see below), whose sum is σ = 3571840584. Its totient is φ = 283619712.

The previous prime is 1063574627. The next prime is 1063574663. The reversal of 1063574640 is 464753601.

It is a happy number.

1063574640 is a `hidden beast` number, since 1 + 0 + 6 + 3 + 5 + 7 + 4 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×1063574640² = 2262382029702259200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1063574595 and 1063574604.

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 11 ways as a sum of consecutive naturals, for example, 737874 + ... + 739313.

Almost surely, 2^1063574640 is an apocalyptic number.

1063574640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1063574640 is an abundant number, since it is smaller than the sum of its proper divisors (2508265944).

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

1063574640 is a wasteful number, since it uses less digits than its factorization.

1063574640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477206 (or 1477197 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 1063574640 is about 32612.4920850891. The cubic root of 1063574640 is about 1020.7576838605.

The spelling of 1063574640 in words is "one billion, sixty-three million, five hundred seventy-four thousand, six hundred forty".