1064026320 has 160 divisors (see below), whose sum is σ = 3800137728. Its totient is φ = 241242624.

The previous prime is 1064026309. The next prime is 1064026321. The reversal of 1064026320 is 236204601.

It is a super-2 number, since 2×1064026320² = 2264304019305484800, 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 (1064026321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210867 + ... + 215853.

Almost surely, 2^1064026320 is an apocalyptic number.

1064026320 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 1064026320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1900068864).

1064026320 is an abundant number, since it is smaller than the sum of its proper divisors (2736111408).

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

1064026320 is a wasteful number, since it uses less digits than its factorization.

1064026320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5137 (or 5131 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1064026320 is about 32619.4163037906. The cubic root of 1064026320 is about 1020.9021622267.

The spelling of 1064026320 in words is "one billion, sixty-four million, twenty-six thousand, three hundred twenty".