45009018 has 24 divisors (see below), whose sum is σ = 97651008. Its totient is φ = 14982792.

The previous prime is 45009001. The next prime is 45009061. The reversal of 45009018 is 81090054.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 45008982 and 45009000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18721 + ... + 20987.

It is an arithmetic number, because the mean of its divisors is an integer number (4068792).

Almost surely, 2^45009018 is an apocalyptic number.

45009018 is an abundant number, since it is smaller than the sum of its proper divisors (52641990).

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

45009018 is a wasteful number, since it uses less digits than its factorization.

45009018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378 (or 3375 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 45009018 is about 6708.8760608615. The cubic root of 45009018 is about 355.7130889093.

The spelling of 45009018 in words is "forty-five million, nine thousand, eighteen".