15030232415440 has 40 divisors (see below), whose sum is σ = 38122134946848. Its totient is φ = 5465539059840.

The previous prime is 15030232415417. The next prime is 15030232415453. The reversal of 15030232415440 is 4451423203051.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 15030232415396 and 15030232415405.

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, 8539903902 + ... + 8539905661.

Almost surely, 2^{15030232415440} is an apocalyptic number.

15030232415440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15030232415440 is an abundant number, since it is smaller than the sum of its proper divisors (23091902531408).

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

15030232415440 is a wasteful number, since it uses less digits than its factorization.

15030232415440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17079809587 (or 17079809581 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 15030232415440 its reverse (4451423203051), we get a palindrome (19481655618491).

The spelling of 15030232415440 in words is "fifteen trillion, thirty billion, two hundred thirty-two million, four hundred fifteen thousand, four hundred forty".