45168489 has 16 divisors (see below), whose sum is σ = 67410240. Its totient is φ = 29890080.

The previous prime is 45168469. The next prime is 45168493. The reversal of 45168489 is 98486154.

45168489 is a `hidden beast` number, since 4 + 5 + 168 + 489 = 666.

It is not a de Polignac number, because 45168489 - 2¹⁷ = 45037417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45168449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2407 + ... + 9804.

It is an arithmetic number, because the mean of its divisors is an integer number (4213140).

Almost surely, 2^45168489 is an apocalyptic number.

It is an amenable number.

45168489 is a deficient number, since it is larger than the sum of its proper divisors (22241751).

45168489 is a wasteful number, since it uses less digits than its factorization.

45168489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12357 (or 12351 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 45168489 is about 6720.7506277201. The cubic root of 45168489 is about 356.1327015489.

The spelling of 45168489 in words is "forty-five million, one hundred sixty-eight thousand, four hundred eighty-nine".