2015540742 has 8 divisors (see below), whose sum is σ = 4031081496. Its totient is φ = 671846912.

The previous prime is 2015540707. The next prime is 2015540753. The reversal of 2015540742 is 2470455102.

It is a sphenic number, since it is the product of 3 distinct primes.

2015540742 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167961723 + ... + 167961734.

It is an arithmetic number, because the mean of its divisors is an integer number (503885187).

Almost surely, 2^2015540742 is an apocalyptic number.

2015540742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2015540742 is a wasteful number, since it uses less digits than its factorization.

2015540742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335923462.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 2015540742 is about 44894.7741056796. The cubic root of 2015540742 is about 1263.1759850412.

Adding to 2015540742 its reverse (2470455102), we get a palindrome (4485995844).

The spelling of 2015540742 in words is "two billion, fifteen million, five hundred forty thousand, seven hundred forty-two".