239828240 has 20 divisors (see below), whose sum is σ = 557600844. Its totient is φ = 95931264.

The previous prime is 239828221. The next prime is 239828327. The reversal of 239828240 is 42828932.

239828240 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 90402064 + 149426176 = 9508^2 + 12224^2 .

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 = 239828194 and 239828203.

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, 1498847 + ... + 1499006.

Almost surely, 2^239828240 is an apocalyptic number.

239828240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

239828240 is an abundant number, since it is smaller than the sum of its proper divisors (317772604).

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

239828240 is a wasteful number, since it uses less digits than its factorization.

239828240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997866 (or 2997860 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 239828240 is about 15486.3888624818. The cubic root of 239828240 is about 621.2982162956.

The spelling of 239828240 in words is "two hundred thirty-nine million, eight hundred twenty-eight thousand, two hundred forty".