545431432 has 32 divisors (see below), whose sum is σ = 1258689600. Its totient is φ = 215774784.

The previous prime is 545431343. The next prime is 545431433. The reversal of 545431432 is 234134545.

It is a junction number, because it is equal to n+sod(n) for n = 545431394 and 545431403.

It is not an unprimeable number, because it can be changed into a prime (545431433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373882 + ... + 375337.

It is an arithmetic number, because the mean of its divisors is an integer number (39334050).

Almost surely, 2^545431432 is an apocalyptic number.

545431432 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

545431432 is an abundant number, since it is smaller than the sum of its proper divisors (713258168).

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

545431432 is a wasteful number, since it uses less digits than its factorization.

545431432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749245 (or 749241 counting only the distinct ones).

The product of its digits is 28800, while the sum is 31.

The square root of 545431432 is about 23354.4734901046. The cubic root of 545431432 is about 817.0463996276.

Adding to 545431432 its reverse (234134545), we get a palindrome (779565977).

The spelling of 545431432 in words is "five hundred forty-five million, four hundred thirty-one thousand, four hundred thirty-two".