239841040 has 20 divisors (see below), whose sum is σ = 557630604. Its totient is φ = 95936384.

The previous prime is 239841037. The next prime is 239841061. The reversal of 239841040 is 40148932.

239841040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 137264656 + 102576384 = 11716^2 + 10128^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 239840993 and 239841011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498927 + ... + 1499086.

Almost surely, 2^239841040 is an apocalyptic number.

239841040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

239841040 is an abundant number, since it is smaller than the sum of its proper divisors (317789564).

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

239841040 is a wasteful number, since it uses less digits than its factorization.

239841040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998026 (or 2998020 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 239841040 is about 15486.8021230982. The cubic root of 239841040 is about 621.3092693110.

Adding to 239841040 its reverse (40148932), we get a palindrome (279989972).

The spelling of 239841040 in words is "two hundred thirty-nine million, eight hundred forty-one thousand, forty".