2564320342 has 8 divisors (see below), whose sum is σ = 3883825296. Its totient is φ = 1269711912.

The previous prime is 2564320327. The next prime is 2564320391. The reversal of 2564320342 is 2430234652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6223873 + ... + 6224284.

It is an arithmetic number, because the mean of its divisors is an integer number (485478162).

Almost surely, 2^2564320342 is an apocalyptic number.

2564320342 is a deficient number, since it is larger than the sum of its proper divisors (1319504954).

2564320342 is a wasteful number, since it uses less digits than its factorization.

2564320342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12448262.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 2564320342 is about 50639.1186929631. The cubic root of 2564320342 is about 1368.7498749345.

Adding to 2564320342 its reverse (2430234652), we get a palindrome (4994554994).

The spelling of 2564320342 in words is "two billion, five hundred sixty-four million, three hundred twenty thousand, three hundred forty-two".