2190980648 has 8 divisors (see below), whose sum is σ = 4108088730. Its totient is φ = 1095490320.

The previous prime is 2190980599. The next prime is 2190980651. The reversal of 2190980648 is 8460890912.

It can be written as a sum of positive squares in only one way, i.e., 1789459204 + 401521444 = 42302^2 + 20038^2 .

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, 136936283 + ... + 136936298.

Almost surely, 2^2190980648 is an apocalyptic number.

It is an amenable number.

2190980648 is a deficient number, since it is larger than the sum of its proper divisors (1917108082).

2190980648 is a wasteful number, since it uses less digits than its factorization.

2190980648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273872587 (or 273872583 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 2190980648 is about 46807.9122371421. The cubic root of 2190980648 is about 1298.8116651545.

The spelling of 2190980648 in words is "two billion, one hundred ninety million, nine hundred eighty thousand, six hundred forty-eight".