45306540 has 60 divisors (see below), whose sum is σ = 142133376. Its totient is φ = 12081312.

The previous prime is 45306509. The next prime is 45306551. The reversal of 45306540 is 4560354.

45306540 is a `hidden beast` number, since 4 + 5 + 3 + 0 + 654 + 0 = 666.

45306540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

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 19 ways as a sum of consecutive naturals, for example, 12364 + ... + 15603.

Almost surely, 2^45306540 is an apocalyptic number.

It is an amenable number.

45306540 is an abundant number, since it is smaller than the sum of its proper divisors (96826836).

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

45306540 is a wasteful number, since it uses less digits than its factorization.

45306540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27988 (or 27977 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 45306540 is about 6731.0132966738. The cubic root of 45306540 is about 356.4951553560.

Adding to 45306540 its reverse (4560354), we get a palindrome (49866894).

The spelling of 45306540 in words is "forty-five million, three hundred six thousand, five hundred forty".