1064321520 has 40 divisors (see below), whose sum is σ = 3299397456. Its totient is φ = 283819008.

The previous prime is 1064321497. The next prime is 1064321521. The reversal of 1064321520 is 251234601.

1064321520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1064321520² = 2265560595870220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064321521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2217097 + ... + 2217576.

Almost surely, 2^1064321520 is an apocalyptic number.

1064321520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1064321520 is an abundant number, since it is smaller than the sum of its proper divisors (2235075936).

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

1064321520 is a wasteful number, since it uses less digits than its factorization.

1064321520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434689 (or 4434683 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1064321520 is about 32623.9409023496. The cubic root of 1064321520 is about 1020.9965654216.

The spelling of 1064321520 in words is "one billion, sixty-four million, three hundred twenty-one thousand, five hundred twenty".