240513939 has 6 divisors (see below), whose sum is σ = 347409036. Its totient is φ = 160342620.

The previous prime is 240513937. The next prime is 240513971. The reversal of 240513939 is 939315042.

It is a happy number.

It is not a de Polignac number, because 240513939 - 2¹ = 240513937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240513937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13361877 + ... + 13361894.

It is an arithmetic number, because the mean of its divisors is an integer number (57901506).

Almost surely, 2^240513939 is an apocalyptic number.

240513939 is a deficient number, since it is larger than the sum of its proper divisors (106895097).

240513939 is a wasteful number, since it uses less digits than its factorization.

240513939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26723777 (or 26723774 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 240513939 is about 15508.5118241564. The cubic root of 240513939 is about 621.8897760317.

The spelling of 240513939 in words is "two hundred forty million, five hundred thirteen thousand, nine hundred thirty-nine".