15340005240 has 128 divisors (see below), whose sum is σ = 53115333120. Its totient is φ = 3471552000.

The previous prime is 15340005211. The next prime is 15340005293. The reversal of 15340005240 is 4250004351.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 15340005240.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5566 + ... + 175245.

It is an arithmetic number, because the mean of its divisors is an integer number (414963540).

Almost surely, 2^15340005240 is an apocalyptic number.

15340005240 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 15340005240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26557666560).

15340005240 is an abundant number, since it is smaller than the sum of its proper divisors (37775327880).

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

15340005240 is a wasteful number, since it uses less digits than its factorization.

15340005240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180933 (or 180929 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 15340005240 its reverse (4250004351), we get a palindrome (19590009591).

The spelling of 15340005240 in words is "fifteen billion, three hundred forty million, five thousand, two hundred forty".