240034640 has 40 divisors (see below), whose sum is σ = 569963520. Its totient is φ = 93969536.

The previous prime is 240034637. The next prime is 240034649. The reversal of 240034640 is 46430042.

It is a happy number.

240034640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240034649) 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 7 ways as a sum of consecutive naturals, for example, 28160 + ... + 35679.

It is an arithmetic number, because the mean of its divisors is an integer number (14249088).

Almost surely, 2^240034640 is an apocalyptic number.

240034640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240034640 is an abundant number, since it is smaller than the sum of its proper divisors (329928880).

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

240034640 is a wasteful number, since it uses less digits than its factorization.

240034640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63899 (or 63893 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 240034640 is about 15493.0513456840. The cubic root of 240034640 is about 621.4763982341.

Adding to 240034640 its reverse (46430042), we get a palindrome (286464682).

The spelling of 240034640 in words is "two hundred forty million, thirty-four thousand, six hundred forty".