1064643530 has 64 divisors (see below), whose sum is σ = 2181634560. Its totient is φ = 371579904.

The previous prime is 1064643529. The next prime is 1064643589. The reversal of 1064643530 is 353464601.

It is a super-2 number, since 2×1064643530² = 2266931691941721800, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 148304 + ... + 155316.

It is an arithmetic number, because the mean of its divisors is an integer number (34088040).

Almost surely, 2^1064643530 is an apocalyptic number.

1064643530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1064643530 is an abundant number, since it is smaller than the sum of its proper divisors (1116991030).

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

1064643530 is a wasteful number, since it uses less digits than its factorization.

1064643530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7103.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 1064643530 is about 32628.8757084886. The cubic root of 1064643530 is about 1021.0995223905.

The spelling of 1064643530 in words is "one billion, sixty-four million, six hundred forty-three thousand, five hundred thirty".