545464646 has 4 divisors (see below), whose sum is σ = 818196972. Its totient is φ = 272732322.

The previous prime is 545464637. The next prime is 545464649. The reversal of 545464646 is 646464545.

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

It is a junction number, because it is equal to n+sod(n) for n = 545464597 and 545464606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545464649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136366160 + ... + 136366163.

It is an arithmetic number, because the mean of its divisors is an integer number (204549243).

Almost surely, 2^545464646 is an apocalyptic number.

545464646 is a deficient number, since it is larger than the sum of its proper divisors (272732326).

545464646 is a wasteful number, since it uses less digits than its factorization.

545464646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272732325.

The product of its digits is 1382400, while the sum is 44.

The square root of 545464646 is about 23355.1845636039. The cubic root of 545464646 is about 817.0629839476.

The spelling of 545464646 in words is "five hundred forty-five million, four hundred sixty-four thousand, six hundred forty-six".