240041640 has 64 divisors (see below), whose sum is σ = 721224000. Its totient is φ = 63913472.

The previous prime is 240041629. The next prime is 240041647. The reversal of 240041640 is 46140042.

It is not an unprimeable number, because it can be changed into a prime (240041647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113311 + ... + 115409.

It is an arithmetic number, because the mean of its divisors is an integer number (11269125).

Almost surely, 2^240041640 is an apocalyptic number.

240041640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240041640 is an abundant number, since it is smaller than the sum of its proper divisors (481182360).

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

240041640 is a wasteful number, since it uses less digits than its factorization.

240041640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066 (or 3062 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 240041640 is about 15493.2772517631. The cubic root of 240041640 is about 621.4824394351.

Adding to 240041640 its reverse (46140042), we get a palindrome (286181682).

The spelling of 240041640 in words is "two hundred forty million, forty-one thousand, six hundred forty".