240278020 has 12 divisors (see below), whose sum is σ = 504583884. Its totient is φ = 96111200.

The previous prime is 240277969. The next prime is 240278039. The reversal of 240278020 is 20872042.

It can be written as a sum of positive squares in 2 ways, for example, as 161849284 + 78428736 = 12722^2 + 8856^2 .

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 3 ways as a sum of consecutive naturals, for example, 6006931 + ... + 6006970.

It is an arithmetic number, because the mean of its divisors is an integer number (42048657).

Almost surely, 2^240278020 is an apocalyptic number.

240278020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240278020 is an abundant number, since it is smaller than the sum of its proper divisors (264305864).

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

240278020 is a wasteful number, since it uses less digits than its factorization.

240278020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12013910 (or 12013908 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 240278020 is about 15500.9038446150. The cubic root of 240278020 is about 621.6863732521.

The spelling of 240278020 in words is "two hundred forty million, two hundred seventy-eight thousand, twenty".