15530240430 has 64 divisors (see below), whose sum is σ = 41793998400. Its totient is φ = 4103395200.

The previous prime is 15530240423. The next prime is 15530240449. The reversal of 15530240430 is 3404203551.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15530240394 and 15530240403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234421 + ... + 293280.

It is an arithmetic number, because the mean of its divisors is an integer number (653031225).

Almost surely, 2^15530240430 is an apocalyptic number.

15530240430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15530240430 is an abundant number, since it is smaller than the sum of its proper divisors (26263757970).

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

15530240430 is a wasteful number, since it uses less digits than its factorization.

15530240430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527826 (or 527820 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 15530240430 its reverse (3404203551), we get a palindrome (18934443981).

The spelling of 15530240430 in words is "fifteen billion, five hundred thirty million, two hundred forty thousand, four hundred thirty".