2190915648 has 56 divisors (see below), whose sum is σ = 6440891360. Its totient is φ = 730304640.

The previous prime is 2190915619. The next prime is 2190915653. The reversal of 2190915648 is 8465190912.

It is a super-3 number, since 3×2190915648³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

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, 632218 + ... + 635673.

Almost surely, 2^2190915648 is an apocalyptic number.

It is an amenable number.

2190915648 is an abundant number, since it is smaller than the sum of its proper divisors (4249975712).

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

2190915648 is a wasteful number, since it uses less digits than its factorization.

2190915648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267912 (or 1267896 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 2190915648 is about 46807.2179049343. The cubic root of 2190915648 is about 1298.7988210439.

The spelling of 2190915648 in words is "two billion, one hundred ninety million, nine hundred fifteen thousand, six hundred forty-eight".