10321332440 has 16 divisors (see below), whose sum is σ = 23222998080. Its totient is φ = 4128532960.

The previous prime is 10321332419. The next prime is 10321332443. The reversal of 10321332440 is 4423312301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10321332443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129016616 + ... + 129016695.

It is an arithmetic number, because the mean of its divisors is an integer number (1451437380).

Almost surely, 2^10321332440 is an apocalyptic number.

10321332440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10321332440 is an abundant number, since it is smaller than the sum of its proper divisors (12901665640).

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

10321332440 is a wasteful number, since it uses less digits than its factorization.

10321332440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258033322 (or 258033318 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 10321332440 its reverse (4423312301), we get a palindrome (14744644741).

The spelling of 10321332440 in words is "ten billion, three hundred twenty-one million, three hundred thirty-two thousand, four hundred forty".