6140446321 has 9 divisors (see below), whose sum is σ = 6420914521. Its totient is φ = 5871746452.

The previous prime is 6140446309. The next prime is 6140446339. The reversal of 6140446321 is 1236440416.

The square root of 6140446321 is 78361.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 6140446321 - 2¹⁵ = 6140413553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6140446381) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1800600 + ... + 1804006.

Almost surely, 2^6140446321 is an apocalyptic number.

6140446321 is the 78361-st square number.

6140446321 is the 39181-st centered octagonal number.

It is an amenable number.

6140446321 is a deficient number, since it is larger than the sum of its proper divisors (280468200).

6140446321 is an frugal number, since it uses more digits than its factorization.

6140446321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6860 (or 3430 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The cubic root of 6140446321 is about 1831.1895995858.

Adding to 6140446321 its reverse (1236440416), we get a palindrome (7376886737).

The spelling of 6140446321 in words is "six billion, one hundred forty million, four hundred forty-six thousand, three hundred twenty-one".