1064340644 has 24 divisors (see below), whose sum is σ = 1914528000. Its totient is φ = 517444704.

The previous prime is 1064340619. The next prime is 1064340659. The reversal of 1064340644 is 4460434601.

1064340644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1064340644² = 2265642012940669472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1064340644.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24482 + ... + 52230.

It is an arithmetic number, because the mean of its divisors is an integer number (79772000).

Almost surely, 2^1064340644 is an apocalyptic number.

It is an amenable number.

1064340644 is a deficient number, since it is larger than the sum of its proper divisors (850187356).

1064340644 is a wasteful number, since it uses less digits than its factorization.

1064340644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28019 (or 28017 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 1064340644 is about 32624.2339986704. The cubic root of 1064340644 is about 1021.0026805603.

The spelling of 1064340644 in words is "one billion, sixty-four million, three hundred forty thousand, six hundred forty-four".