45543040 has 32 divisors (see below), whose sum is σ = 108877860. Its totient is φ = 18216960.

The previous prime is 45543037. The next prime is 45543077. The reversal of 45543040 is 4034554.

45543040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 45481536 + 61504 = 6744^2 + 248^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 45542996 and 45543014.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 34941 + ... + 36220.

Almost surely, 2^45543040 is an apocalyptic number.

45543040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45543040 is an abundant number, since it is smaller than the sum of its proper divisors (63334820).

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

45543040 is an equidigital number, since it uses as much as digits as its factorization.

45543040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71180 (or 71168 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 45543040 is about 6748.5583645694. The cubic root of 45543040 is about 357.1143803580.

Adding to 45543040 its reverse (4034554), we get a palindrome (49577594).

The spelling of 45543040 in words is "forty-five million, five hundred forty-three thousand, forty".