2215334540 has 24 divisors (see below), whose sum is σ = 4655827680. Its totient is φ = 885443328.

The previous prime is 2215334531. The next prime is 2215334543. The reversal of 2215334540 is 454335122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2215334543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16445 + ... + 68564.

It is an arithmetic number, because the mean of its divisors is an integer number (193992820).

Almost surely, 2^2215334540 is an apocalyptic number.

2215334540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215334540 is an abundant number, since it is smaller than the sum of its proper divisors (2440493140).

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

2215334540 is a wasteful number, since it uses less digits than its factorization.

2215334540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86321 (or 86319 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2215334540 is about 47067.3404814846. The cubic root of 2215334540 is about 1303.6062668587.

Adding to 2215334540 its reverse (454335122), we get a palindrome (2669669662).

The spelling of 2215334540 in words is "two billion, two hundred fifteen million, three hundred thirty-four thousand, five hundred forty".