2015442312 has 64 divisors (see below), whose sum is σ = 5494944000. Its totient is φ = 612278784.

The previous prime is 2015442283. The next prime is 2015442313. The reversal of 2015442312 is 2132445102.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2015442313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16237 + ... + 65532.

It is an arithmetic number, because the mean of its divisors is an integer number (85858500).

Almost surely, 2^2015442312 is an apocalyptic number.

It is an amenable number.

2015442312 is an abundant number, since it is smaller than the sum of its proper divisors (3479501688).

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

2015442312 is a wasteful number, since it uses less digits than its factorization.

2015442312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81870 (or 81866 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2015442312 is about 44893.6778622558. The cubic root of 2015442312 is about 1263.1554220836.

Adding to 2015442312 its reverse (2132445102), we get a palindrome (4147887414).

The spelling of 2015442312 in words is "two billion, fifteen million, four hundred forty-two thousand, three hundred twelve".