545343972 has 12 divisors (see below), whose sum is σ = 1272469296. Its totient is φ = 181781320.

The previous prime is 545343959. The next prime is 545343973. The reversal of 545343972 is 279343545.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (545343973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22722654 + ... + 22722677.

It is an arithmetic number, because the mean of its divisors is an integer number (106039108).

Almost surely, 2^545343972 is an apocalyptic number.

It is an amenable number.

545343972 is an abundant number, since it is smaller than the sum of its proper divisors (727125324).

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

545343972 is a wasteful number, since it uses less digits than its factorization.

545343972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45445338 (or 45445336 counting only the distinct ones).

The product of its digits is 453600, while the sum is 42.

The square root of 545343972 is about 23352.6009686287. The cubic root of 545343972 is about 817.0027261282.

The spelling of 545343972 in words is "five hundred forty-five million, three hundred forty-three thousand, nine hundred seventy-two".