1064320408 has 8 divisors (see below), whose sum is σ = 1995600780. Its totient is φ = 532160200.

The previous prime is 1064320403. The next prime is 1064320441. The reversal of 1064320408 is 8040234601.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1064320408² = 2265555861770572928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064320403) by changing a digit.

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 as a sum of consecutive naturals, namely, 66520018 + ... + 66520033.

Almost surely, 2^1064320408 is an apocalyptic number.

It is an amenable number.

1064320408 is a deficient number, since it is larger than the sum of its proper divisors (931280372).

1064320408 is a wasteful number, since it uses less digits than its factorization.

1064320408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133040057 (or 133040053 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1064320408 is about 32623.9238596463. The cubic root of 1064320408 is about 1020.9962098434.

The spelling of 1064320408 in words is "one billion, sixty-four million, three hundred twenty thousand, four hundred eight".