240801640 has 64 divisors (see below), whose sum is σ = 551640960. Its totient is φ = 94590720.

The previous prime is 240801637. The next prime is 240801643. The reversal of 240801640 is 46108042.

It is an interprime number because it is at equal distance from previous prime (240801637) and next prime (240801643).

It is not an unprimeable number, because it can be changed into a prime (240801643) 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, 869182 + ... + 869458.

It is an arithmetic number, because the mean of its divisors is an integer number (8619390).

Almost surely, 2^240801640 is an apocalyptic number.

240801640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240801640 is an abundant number, since it is smaller than the sum of its proper divisors (310839320).

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

240801640 is a wasteful number, since it uses less digits than its factorization.

240801640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 240801640 is about 15517.7846357011. The cubic root of 240801640 is about 622.1376438799.

Adding to 240801640 its reverse (46108042), we get a palindrome (286909682).

The spelling of 240801640 in words is "two hundred forty million, eight hundred one thousand, six hundred forty".