15240230140 has 12 divisors (see below), whose sum is σ = 32004483336. Its totient is φ = 6096092048.

The previous prime is 15240230113. The next prime is 15240230147. The reversal of 15240230140 is 4103204251.

It is a super-2 number, since 2×15240230140² (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 (15240230147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381005734 + ... + 381005773.

It is an arithmetic number, because the mean of its divisors is an integer number (2667040278).

Almost surely, 2^15240230140 is an apocalyptic number.

15240230140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15240230140 is an abundant number, since it is smaller than the sum of its proper divisors (16764253196).

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

15240230140 is a wasteful number, since it uses less digits than its factorization.

15240230140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762011516 (or 762011514 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 15240230140 its reverse (4103204251), we get a palindrome (19343434391).

The spelling of 15240230140 in words is "fifteen billion, two hundred forty million, two hundred thirty thousand, one hundred forty".