6344490581 has 8 divisors (see below), whose sum is σ = 7453667424. Its totient is φ = 5324047920.

The previous prime is 6344490569. The next prime is 6344490587. The reversal of 6344490581 is 1850944436.

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

It is a cyclic number.

It is not a de Polignac number, because 6344490581 - 2¹⁴ = 6344474197 is a prime.

It is a super-2 number, since 2×6344490581² = 80505121464795435122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6344490587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22183391 + ... + 22183676.

It is an arithmetic number, because the mean of its divisors is an integer number (931708428).

Almost surely, 2^6344490581 is an apocalyptic number.

It is an amenable number.

6344490581 is a deficient number, since it is larger than the sum of its proper divisors (1109176843).

6344490581 is a wasteful number, since it uses less digits than its factorization.

6344490581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44367091.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 6344490581 is about 79652.3105816774. The cubic root of 6344490581 is about 1851.2521915488.

The spelling of 6344490581 in words is "six billion, three hundred forty-four million, four hundred ninety thousand, five hundred eighty-one".