10389540 has 96 divisors (see below), whose sum is σ = 34433280. Its totient is φ = 2290176.

The previous prime is 10389517. The next prime is 10389551. The reversal of 10389540 is 4598301.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 10389498 and 10389507.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11754 + ... + 12606.

It is an arithmetic number, because the mean of its divisors is an integer number (358680).

Almost surely, 2^10389540 is an apocalyptic number.

10389540 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 10389540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17216640).

10389540 is an abundant number, since it is smaller than the sum of its proper divisors (24043740).

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

10389540 is a wasteful number, since it uses less digits than its factorization.

10389540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 10389540 is about 3223.2809371819. The cubic root of 10389540 is about 218.2053727726.

The spelling of 10389540 in words is "ten million, three hundred eighty-nine thousand, five hundred forty".