15122432340 has 144 divisors (see below), whose sum is σ = 46534715136. Its totient is φ = 3974572800.

The previous prime is 15122432327. The next prime is 15122432341. The reversal of 15122432340 is 4323422151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15122432341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8081605 + ... + 8083475.

It is an arithmetic number, because the mean of its divisors is an integer number (323157744).

Almost surely, 2^15122432340 is an apocalyptic number.

15122432340 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 15122432340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23267357568).

15122432340 is an abundant number, since it is smaller than the sum of its proper divisors (31412282796).

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

15122432340 is a wasteful number, since it uses less digits than its factorization.

15122432340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510 (or 2505 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 15122432340 its reverse (4323422151), we get a palindrome (19445854491).

The spelling of 15122432340 in words is "fifteen billion, one hundred twenty-two million, four hundred thirty-two thousand, three hundred forty".