545405630 has 128 divisors (see below), whose sum is σ = 1284857856. Its totient is φ = 161740800.

The previous prime is 545405587. The next prime is 545405633. The reversal of 545405630 is 36504545.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545405633) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1742354 + ... + 1742666.

It is an arithmetic number, because the mean of its divisors is an integer number (10037952).

Almost surely, 2^545405630 is an apocalyptic number.

545405630 is an abundant number, since it is smaller than the sum of its proper divisors (739452226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545405630 is a wasteful number, since it uses less digits than its factorization.

545405630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 545405630 is about 23353.9210840492. The cubic root of 545405630 is about 817.0335157817.

The spelling of 545405630 in words is "five hundred forty-five million, four hundred five thousand, six hundred thirty".