15104132440 has 32 divisors (see below), whose sum is σ = 34707372480. Its totient is φ = 5913106432.

The previous prime is 15104132429. The next prime is 15104132447. The reversal of 15104132440 is 4423140151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15104132447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4015177 + ... + 4018936.

It is an arithmetic number, because the mean of its divisors is an integer number (1084605390).

Almost surely, 2^15104132440 is an apocalyptic number.

15104132440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15104132440 is an abundant number, since it is smaller than the sum of its proper divisors (19603240040).

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

15104132440 is a wasteful number, since it uses less digits than its factorization.

15104132440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8034171 (or 8034167 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 15104132440 its reverse (4423140151), we get a palindrome (19527272591).

The spelling of 15104132440 in words is "fifteen billion, one hundred four million, one hundred thirty-two thousand, four hundred forty".