10340021240 has 64 divisors (see below), whose sum is σ = 23946239520. Its totient is φ = 4015872000.

The previous prime is 10340021239. The next prime is 10340021249. The reversal of 10340021240 is 4212004301.

It is a super-2 number, since 2×10340021240² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10340021249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331100 + ... + 360980.

Almost surely, 2^10340021240 is an apocalyptic number.

10340021240 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 10340021240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11973119760).

10340021240 is an abundant number, since it is smaller than the sum of its proper divisors (13606218280).

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

10340021240 is a wasteful number, since it uses less digits than its factorization.

10340021240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30144 (or 30140 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 10340021240 its reverse (4212004301), we get a palindrome (14552025541).

The spelling of 10340021240 in words is "ten billion, three hundred forty million, twenty-one thousand, two hundred forty".