1064396409 has 4 divisors (see below), whose sum is σ = 1419195216. Its totient is φ = 709597604.

The previous prime is 1064396407. The next prime is 1064396413. The reversal of 1064396409 is 9046934601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9046934601 = 3 ⋅3015644867.

It is a cyclic number.

It is not a de Polignac number, because 1064396409 - 2¹ = 1064396407 is a prime.

It is a super-2 number, since 2×1064396409² = 2265879430984190562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1064396407) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 177399399 + ... + 177399404.

It is an arithmetic number, because the mean of its divisors is an integer number (354798804).

Almost surely, 2^1064396409 is an apocalyptic number.

It is an amenable number.

1064396409 is a deficient number, since it is larger than the sum of its proper divisors (354798807).

1064396409 is an equidigital number, since it uses as much as digits as its factorization.

1064396409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354798806.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 1064396409 is about 32625.0886435577. The cubic root of 1064396409 is about 1021.0205117000.

The spelling of 1064396409 in words is "one billion, sixty-four million, three hundred ninety-six thousand, four hundred nine".