240387797 has 12 divisors (see below), whose sum is σ = 266658084. Its totient is φ = 216478080.

The previous prime is 240387793. The next prime is 240387799. The reversal of 240387797 is 797783042.

It can be written as a sum of positive squares in 6 ways, for example, as 75881521 + 164506276 = 8711^2 + 12826^2 .

It is not a de Polignac number, because 240387797 - 2² = 240387793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240387793) 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 11 ways as a sum of consecutive naturals, for example, 10418 + ... + 24275.

It is an arithmetic number, because the mean of its divisors is an integer number (22221507).

Almost surely, 2^240387797 is an apocalyptic number.

It is an amenable number.

240387797 is a deficient number, since it is larger than the sum of its proper divisors (26270287).

240387797 is a wasteful number, since it uses less digits than its factorization.

240387797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34760 (or 34747 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 47.

The square root of 240387797 is about 15504.4444273247. Note that the first 4 decimals coincide. The cubic root of 240387797 is about 621.7810364735.

The spelling of 240387797 in words is "two hundred forty million, three hundred eighty-seven thousand, seven hundred ninety-seven".