545428418 has 4 divisors (see below), whose sum is σ = 818142630. Its totient is φ = 272714208.

The previous prime is 545428399. The next prime is 545428423. The reversal of 545428418 is 814824545.

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., 314601169 + 230827249 = 17737^2 + 15193^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136357103 + ... + 136357106.

Almost surely, 2^545428418 is an apocalyptic number.

545428418 is a deficient number, since it is larger than the sum of its proper divisors (272714212).

545428418 is a wasteful number, since it uses less digits than its factorization.

545428418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272714211.

The product of its digits is 204800, while the sum is 41.

The square root of 545428418 is about 23354.4089627633. The cubic root of 545428418 is about 817.0448946524.

The spelling of 545428418 in words is "five hundred forty-five million, four hundred twenty-eight thousand, four hundred eighteen".