15230100440 has 96 divisors (see below), whose sum is σ = 36031489200. Its totient is φ = 5793173760.

The previous prime is 15230100419. The next prime is 15230100451. The reversal of 15230100440 is 4400103251.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3785630 + ... + 3789650.

Almost surely, 2^15230100440 is an apocalyptic number.

15230100440 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 15230100440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18015744600).

15230100440 is an abundant number, since it is smaller than the sum of its proper divisors (20801388760).

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

15230100440 is a wasteful number, since it uses less digits than its factorization.

15230100440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4257 (or 4230 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 15230100440 its reverse (4400103251), we get a palindrome (19630203691).

The spelling of 15230100440 in words is "fifteen billion, two hundred thirty million, one hundred thousand, four hundred forty".