15005231040 has 224 divisors, whose sum is σ = 49612783680. Its totient is φ = 3837689856.

The previous prime is 15005231039. The next prime is 15005231053. The reversal of 15005231040 is 4013250051.

It is a junction number, because it is equal to n+sod(n) for n = 15005230998 and 15005231016.

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, 4369164 + ... + 4372596.

Almost surely, 2^15005231040 is an apocalyptic number.

15005231040 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 15005231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24806391840).

15005231040 is an abundant number, since it is smaller than the sum of its proper divisors (34607552640).

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

15005231040 is a wasteful number, since it uses less digits than its factorization.

15005231040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639 (or 3629 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 15005231040 its reverse (4013250051), we get a palindrome (19018481091).

The spelling of 15005231040 in words is "fifteen billion, five million, two hundred thirty-one thousand, forty".