545378810 has 16 divisors (see below), whose sum is σ = 984501000. Its totient is φ = 217525056.

The previous prime is 545378809. The next prime is 545378837. The reversal of 545378810 is 18873545.

It can be written as a sum of positive squares in 4 ways, for example, as 422590249 + 122788561 = 20557^2 + 11081^2 .

It is a super-2 number, since 2×545378810² = 594876092794032200, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 74645 + ... + 81624.

Almost surely, 2^545378810 is an apocalyptic number.

545378810 is a deficient number, since it is larger than the sum of its proper divisors (439122190).

545378810 is a wasteful number, since it uses less digits than its factorization.

545378810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156625.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 545378810 is about 23353.3468693462. The cubic root of 545378810 is about 817.0201231818.

The spelling of 545378810 in words is "five hundred forty-five million, three hundred seventy-eight thousand, eight hundred ten".