15005432140 has 48 divisors (see below), whose sum is σ = 32542159104. Its totient is φ = 5807635200.

The previous prime is 15005432131. The next prime is 15005432159. The reversal of 15005432140 is 4123450051.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77925 + ... + 189955.

It is an arithmetic number, because the mean of its divisors is an integer number (677961648).

Almost surely, 2^15005432140 is an apocalyptic number.

15005432140 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 15005432140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16271079552).

15005432140 is an abundant number, since it is smaller than the sum of its proper divisors (17536726964).

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

15005432140 is a wasteful number, since it uses less digits than its factorization.

15005432140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112258 (or 112256 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 15005432140 its reverse (4123450051), we get a palindrome (19128882191).

The spelling of 15005432140 in words is "fifteen billion, five million, four hundred thirty-two thousand, one hundred forty".