2640219112 has 8 divisors (see below), whose sum is σ = 4950410850. Its totient is φ = 1320109552.

The previous prime is 2640219091. The next prime is 2640219121. The reversal of 2640219112 is 2119120462.

It can be written as a sum of positive squares in only one way, i.e., 2290005316 + 350213796 = 47854^2 + 18714^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165013687 + ... + 165013702.

Almost surely, 2^2640219112 is an apocalyptic number.

It is an amenable number.

2640219112 is a deficient number, since it is larger than the sum of its proper divisors (2310191738).

2640219112 is a wasteful number, since it uses less digits than its factorization.

2640219112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330027395 (or 330027391 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2640219112 is about 51383.0625011783. The cubic root of 2640219112 is about 1382.1228812236.

Adding to 2640219112 its reverse (2119120462), we get a palindrome (4759339574).

The spelling of 2640219112 in words is "two billion, six hundred forty million, two hundred nineteen thousand, one hundred twelve".