240195840 has 144 divisors (see below), whose sum is σ = 778813056. Its totient is φ = 63078400.

The previous prime is 240195827. The next prime is 240195863. The reversal of 240195840 is 48591042.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272200 + ... + 273080.

It is an arithmetic number, because the mean of its divisors is an integer number (5408424).

Almost surely, 2^240195840 is an apocalyptic number.

240195840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240195840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389406528).

240195840 is an abundant number, since it is smaller than the sum of its proper divisors (538617216).

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

240195840 is an equidigital number, since it uses as much as digits as its factorization.

240195840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 240195840 is about 15498.2528047519. The cubic root of 240195840 is about 621.6154886828.

The spelling of 240195840 in words is "two hundred forty million, one hundred ninety-five thousand, eight hundred forty".