545428403 has 12 divisors (see below), whose sum is σ = 598102560. Its totient is φ = 497087136.

The previous prime is 545428399. The next prime is 545428423. The reversal of 545428403 is 304824545.

It is not a de Polignac number, because 545428403 - 2² = 545428399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545428423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7076 + ... + 33777.

It is an arithmetic number, because the mean of its divisors is an integer number (49841880).

Almost surely, 2^545428403 is an apocalyptic number.

545428403 is a deficient number, since it is larger than the sum of its proper divisors (52674157).

545428403 is a wasteful number, since it uses less digits than its factorization.

545428403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40958 (or 40945 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

The square root of 545428403 is about 23354.4086416248. The cubic root of 545428403 is about 817.0448871624.

The spelling of 545428403 in words is "five hundred forty-five million, four hundred twenty-eight thousand, four hundred three".