605413642 has 4 divisors (see below), whose sum is σ = 908120466. Its totient is φ = 302706820.

The previous prime is 605413637. The next prime is 605413643. The reversal of 605413642 is 246314506.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 455865201 + 149548441 = 21351^2 + 12229^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (605413643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151353409 + ... + 151353412.

Almost surely, 2^605413642 is an apocalyptic number.

605413642 is a deficient number, since it is larger than the sum of its proper divisors (302706824).

605413642 is a wasteful number, since it uses less digits than its factorization.

605413642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302706823.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 605413642 is about 24605.1547851258. The cubic root of 605413642 is about 845.9617642983.

The spelling of 605413642 in words is "six hundred five million, four hundred thirteen thousand, six hundred forty-two".