613405441 has 16 divisors (see below), whose sum is σ = 717087168. Its totient is φ = 518502400.

The previous prime is 613405439. The next prime is 613405451. The reversal of 613405441 is 144504316.

It is a cyclic number.

It is not a de Polignac number, because 613405441 - 2¹ = 613405439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613405451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4240 + ... + 35281.

It is an arithmetic number, because the mean of its divisors is an integer number (44817948).

Almost surely, 2^613405441 is an apocalyptic number.

It is an amenable number.

613405441 is a deficient number, since it is larger than the sum of its proper divisors (103681727).

613405441 is a wasteful number, since it uses less digits than its factorization.

613405441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39632.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 613405441 is about 24767.0232567420. The cubic root of 613405441 is about 849.6678937880.

Adding to 613405441 its reverse (144504316), we get a palindrome (757909757).

The spelling of 613405441 in words is "six hundred thirteen million, four hundred five thousand, four hundred forty-one".