15420340000 has 240 divisors, whose sum is σ = 41264391168. Its totient is φ = 5636736000.

The previous prime is 15420339931. The next prime is 15420340009. The reversal of 15420340000 is 4302451.

It is a self number, because there is not a number n which added to its sum of digits gives 15420340000.

It is not an unprimeable number, because it can be changed into a prime (15420340009) 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 39 ways as a sum of consecutive naturals, for example, 33019767 + ... + 33020233.

Almost surely, 2^15420340000 is an apocalyptic number.

15420340000 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 15420340000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20632195584).

15420340000 is an abundant number, since it is smaller than the sum of its proper divisors (25844051168).

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

15420340000 is a wasteful number, since it uses less digits than its factorization.

15420340000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 614 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 15420340000 its reverse (4302451), we get a palindrome (15424642451).

The spelling of 15420340000 in words is "fifteen billion, four hundred twenty million, three hundred forty thousand".