10239040 has 84 divisors (see below), whose sum is σ = 28405836. Its totient is φ = 3505152.

The previous prime is 10239023. The next prime is 10239067. The reversal of 10239040 is 4093201.

It can be written as a sum of positive squares in 2 ways, for example, as 3013696 + 7225344 = 1736^2 + 2688^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10238999 and 10239017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15354 + ... + 16006.

Almost surely, 2^10239040 is an apocalyptic number.

10239040 is a gapful number since it is divisible by the number (10) 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 10239040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14202918).

10239040 is an abundant number, since it is smaller than the sum of its proper divisors (18166796).

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

10239040 is an equidigital number, since it uses as much as digits as its factorization.

10239040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 10239040 is about 3199.8499964842. The cubic root of 10239040 is about 217.1466230715.

The spelling of 10239040 in words is "ten million, two hundred thirty-nine thousand, forty".