2115301440 has 112 divisors (see below), whose sum is σ = 7675546752. Its totient is φ = 483495936.

The previous prime is 2115301439. The next prime is 2115301471. The reversal of 2115301440 is 441035112.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (21).

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 15 ways as a sum of consecutive naturals, for example, 150669 + ... + 164108.

Almost surely, 2^2115301440 is an apocalyptic number.

2115301440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2115301440 is an abundant number, since it is smaller than the sum of its proper divisors (5560245312).

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

2115301440 is a wasteful number, since it uses less digits than its factorization.

2115301440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314804 (or 314794 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2115301440 is about 45992.4063297410. The cubic root of 2115301440 is about 1283.6819118697.

Adding to 2115301440 its reverse (441035112), we get a palindrome (2556336552).

The spelling of 2115301440 in words is "two billion, one hundred fifteen million, three hundred one thousand, four hundred forty".