15279340240 has 40 divisors (see below), whose sum is σ = 37614143880. Its totient is φ = 5752221696.

The previous prime is 15279340213. The next prime is 15279340277. The reversal of 15279340240 is 4204397251.

15279340240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7991644816 + 7287695424 = 89396^2 + 85368^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 15279340240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5616045 + ... + 5618764.

It is an arithmetic number, because the mean of its divisors is an integer number (940353597).

Almost surely, 2^15279340240 is an apocalyptic number.

15279340240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15279340240 is an abundant number, since it is smaller than the sum of its proper divisors (22334803640).

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

15279340240 is a wasteful number, since it uses less digits than its factorization.

15279340240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11234839 (or 11234833 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 15279340240 in words is "fifteen billion, two hundred seventy-nine million, three hundred forty thousand, two hundred forty".