40162985 has 16 divisors (see below), whose sum is σ = 49859712. Its totient is φ = 31036800.

The previous prime is 40162973. The next prime is 40162987. The reversal of 40162985 is 58926104.

40162985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40162985 - 2¹² = 40158889 is a prime.

It is a super-2 number, since 2×40162985² = 3226130728220450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40162987) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21020 + ... + 22850.

It is an arithmetic number, because the mean of its divisors is an integer number (3116232).

Almost surely, 2^40162985 is an apocalyptic number.

It is an amenable number.

40162985 is a deficient number, since it is larger than the sum of its proper divisors (9696727).

40162985 is a wasteful number, since it uses less digits than its factorization.

40162985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 40162985 is about 6337.4273171375. The cubic root of 40162985 is about 342.4590605870.

The spelling of 40162985 in words is "forty million, one hundred sixty-two thousand, nine hundred eighty-five".