45543968 has 18 divisors (see below), whose sum is σ = 89739909. Its totient is φ = 22752896.

The previous prime is 45543961. The next prime is 45543977. The reversal of 45543968 is 86934554.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 45535504 + 8464 = 6748^2 + 92^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=4772.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45543961) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 37580 + ... + 38772.

Almost surely, 2^45543968 is an apocalyptic number.

It is an amenable number.

45543968 is a deficient number, since it is larger than the sum of its proper divisors (44195941).

45543968 is an frugal number, since it uses more digits than its factorization.

45543968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396 (or 1195 counting only the distinct ones).

The product of its digits is 518400, while the sum is 44.

The square root of 45543968 is about 6748.6271196444. The cubic root of 45543968 is about 357.1168059017.

The spelling of 45543968 in words is "forty-five million, five hundred forty-three thousand, nine hundred sixty-eight".