15040432530 has 96 divisors (see below), whose sum is σ = 39572717184. Its totient is φ = 3963022848.

The previous prime is 15040432507. The next prime is 15040432571. The reversal of 15040432530 is 3523404051.

15040432530 is a `hidden beast` number, since 1 + 5 + 0 + 404 + 3 + 253 + 0 = 666.

It is a super-2 number, since 2×15040432530² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15040432494 and 15040432503.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4167987 + ... + 4171593.

It is an arithmetic number, because the mean of its divisors is an integer number (412215804).

Almost surely, 2^15040432530 is an apocalyptic number.

15040432530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15040432530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19786358592).

15040432530 is an abundant number, since it is smaller than the sum of its proper divisors (24532284654).

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

15040432530 is a wasteful number, since it uses less digits than its factorization.

15040432530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160 (or 4157 counting only the distinct ones).

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

Adding to 15040432530 its reverse (3523404051), we get a palindrome (18563836581).

The spelling of 15040432530 in words is "fifteen billion, forty million, four hundred thirty-two thousand, five hundred thirty".