40045170 has 32 divisors (see below), whose sum is σ = 104846400. Its totient is φ = 9707840.

The previous prime is 40045147. The next prime is 40045199. The reversal of 40045170 is 7154004.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60345 + ... + 61004.

It is an arithmetic number, because the mean of its divisors is an integer number (3276450).

Almost surely, 2^40045170 is an apocalyptic number.

40045170 is an abundant number, since it is smaller than the sum of its proper divisors (64801230).

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

40045170 is a wasteful number, since it uses less digits than its factorization.

40045170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121370.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 40045170 is about 6328.1253148148. The cubic root of 40045170 is about 342.1238735978.

Adding to 40045170 its reverse (7154004), we get a palindrome (47199174).

The spelling of 40045170 in words is "forty million, forty-five thousand, one hundred seventy".