545423478 has 32 divisors (see below), whose sum is σ = 1163859840. Its totient is φ = 169802880.

The previous prime is 545423453. The next prime is 545423479. The reversal of 545423478 is 874324545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545423479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7048 + ... + 33771.

It is an arithmetic number, because the mean of its divisors is an integer number (36370620).

Almost surely, 2^545423478 is an apocalyptic number.

545423478 is an abundant number, since it is smaller than the sum of its proper divisors (618436362).

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

545423478 is a wasteful number, since it uses less digits than its factorization.

545423478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40972.

The product of its digits is 537600, while the sum is 42.

The square root of 545423478 is about 23354.3032009092. The cubic root of 545423478 is about 817.0424279590.

The spelling of 545423478 in words is "five hundred forty-five million, four hundred twenty-three thousand, four hundred seventy-eight".