10140021240 has 32 divisors (see below), whose sum is σ = 30420064080. Its totient is φ = 2704005632.

The previous prime is 10140021223. The next prime is 10140021259. The reversal of 10140021240 is 4212004101.

10140021240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10140021240² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42249969 + ... + 42250208.

Almost surely, 2^10140021240 is an apocalyptic number.

10140021240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10140021240 is an abundant number, since it is smaller than the sum of its proper divisors (20280042840).

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

10140021240 is a wasteful number, since it uses less digits than its factorization.

10140021240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84500191 (or 84500187 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10140021240 its reverse (4212004101), we get a palindrome (14352025341).

The spelling of 10140021240 in words is "ten billion, one hundred forty million, twenty-one thousand, two hundred forty".