545331646 has 16 divisors (see below), whose sum is σ = 826956000. Its totient is φ = 269686368.

The previous prime is 545331637. The next prime is 545331649. The reversal of 545331646 is 646133545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545331649) 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, 318240 + ... + 319948.

It is an arithmetic number, because the mean of its divisors is an integer number (51684750).

Almost surely, 2^545331646 is an apocalyptic number.

545331646 is a deficient number, since it is larger than the sum of its proper divisors (281624354).

545331646 is a wasteful number, since it uses less digits than its factorization.

545331646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3363.

The product of its digits is 129600, while the sum is 37.

The square root of 545331646 is about 23352.3370564918. The cubic root of 545331646 is about 816.9965707156.

The spelling of 545331646 in words is "five hundred forty-five million, three hundred thirty-one thousand, six hundred forty-six".