240020066 has 64 divisors (see below), whose sum is σ = 448398720. Its totient is φ = 94832640.

The previous prime is 240020041. The next prime is 240020089. The reversal of 240020066 is 660020042.

240020066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356306 + ... + 356978.

It is an arithmetic number, because the mean of its divisors is an integer number (7006230).

Almost surely, 2^240020066 is an apocalyptic number.

240020066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

240020066 is a deficient number, since it is larger than the sum of its proper divisors (208378654).

240020066 is a wasteful number, since it uses less digits than its factorization.

240020066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 240020066 is about 15492.5809986587. The cubic root of 240020066 is about 621.4638200769.

The spelling of 240020066 in words is "two hundred forty million, twenty thousand, sixty-six".