240255140 has 48 divisors (see below), whose sum is σ = 523741680. Its totient is φ = 92467200.

The previous prime is 240255137. The next prime is 240255151. The reversal of 240255140 is 41552042.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 72863296 + 167391844 = 8536^2 + 12938^2 .

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, 232064 + ... + 233096.

It is an arithmetic number, because the mean of its divisors is an integer number (10911285).

Almost surely, 2^240255140 is an apocalyptic number.

240255140 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 240255140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261870840).

240255140 is an abundant number, since it is smaller than the sum of its proper divisors (283486540).

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

240255140 is a wasteful number, since it uses less digits than its factorization.

240255140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472 (or 1470 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 240255140 is about 15500.1658055648. The cubic root of 240255140 is about 621.6666396733. Note that the first 4 decimals are identical.

The spelling of 240255140 in words is "two hundred forty million, two hundred fifty-five thousand, one hundred forty".