15430531072340 has 24 divisors (see below), whose sum is σ = 32404931526240. Its totient is φ = 6172056948128.

The previous prime is 15430531072331. The next prime is 15430531072361. The reversal of 15430531072340 is 4327013503451.

It is a junction number, because it is equal to n+sod(n) for n = 15430531072294 and 15430531072303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8902082 + ... + 10493241.

It is an arithmetic number, because the mean of its divisors is an integer number (1350205480260).

Almost surely, 2^{15430531072340} is an apocalyptic number.

15430531072340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15430531072340 is an abundant number, since it is smaller than the sum of its proper divisors (16974400453900).

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

15430531072340 is a wasteful number, since it uses less digits than its factorization.

15430531072340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19435111 (or 19435109 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 38.

Adding to 15430531072340 its reverse (4327013503451), we get a palindrome (19757544575791).

The spelling of 15430531072340 in words is "fifteen trillion, four hundred thirty billion, five hundred thirty-one million, seventy-two thousand, three hundred forty".