10320040 has 64 divisors (see below), whose sum is σ = 25171200. Its totient is φ = 3794688.

The previous prime is 10320029. The next prime is 10320067. The reversal of 10320040 is 4002301.

10320040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10319999 and 10320026.

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, 27937 + ... + 28303.

It is an arithmetic number, because the mean of its divisors is an integer number (393300).

Almost surely, 2^10320040 is an apocalyptic number.

10320040 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 10320040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12585600).

10320040 is an abundant number, since it is smaller than the sum of its proper divisors (14851160).

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

10320040 is a wasteful number, since it uses less digits than its factorization.

10320040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 10320040 is about 3212.4819065638. The cubic root of 10320040 is about 217.7177279789.

Adding to 10320040 its reverse (4002301), we get a palindrome (14322341).

The spelling of 10320040 in words is "ten million, three hundred twenty thousand, forty".