15432901240 has 128 divisors (see below), whose sum is σ = 39603168000. Its totient is φ = 5376043008.

The previous prime is 15432901229. The next prime is 15432901271. The reversal of 15432901240 is 4210923451.

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, 541671 + ... + 569449.

It is an arithmetic number, because the mean of its divisors is an integer number (309399750).

Almost surely, 2^15432901240 is an apocalyptic number.

15432901240 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 15432901240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19801584000).

15432901240 is an abundant number, since it is smaller than the sum of its proper divisors (24170266760).

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

15432901240 is a wasteful number, since it uses less digits than its factorization.

15432901240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27869 (or 27865 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 15432901240 in words is "fifteen billion, four hundred thirty-two million, nine hundred one thousand, two hundred forty".