1063697640 has 32 divisors (see below), whose sum is σ = 3191093280. Its totient is φ = 283652672.

The previous prime is 1063697587. The next prime is 1063697659. The reversal of 1063697640 is 467963601.

It is a super-2 number, since 2×1063697640² = 2262905338683139200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1063697592 and 1063697601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4431954 + ... + 4432193.

It is an arithmetic number, because the mean of its divisors is an integer number (99721665).

Almost surely, 2^1063697640 is an apocalyptic number.

1063697640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1063697640 is an abundant number, since it is smaller than the sum of its proper divisors (2127395640).

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

1063697640 is a wasteful number, since it uses less digits than its factorization.

1063697640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8864161 (or 8864157 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 1063697640 is about 32614.3778110207. The cubic root of 1063697640 is about 1020.7970317824.

The spelling of 1063697640 in words is "one billion, sixty-three million, six hundred ninety-seven thousand, six hundred forty".