2190806148 has 24 divisors (see below), whose sum is σ = 5114724160. Its totient is φ = 729862560.

The previous prime is 2190806147. The next prime is 2190806161. The reversal of 2190806148 is 8416080912.

It is a super-2 number, since 2×2190806148² = 9599263156229195808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2190806147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27883 + ... + 71826.

Almost surely, 2^2190806148 is an apocalyptic number.

It is an amenable number.

2190806148 is an abundant number, since it is smaller than the sum of its proper divisors (2923918012).

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

2190806148 is a wasteful number, since it uses less digits than its factorization.

2190806148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101547 (or 101545 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 2190806148 is about 46806.0481989240. The cubic root of 2190806148 is about 1298.7771830832. Note that the first 3 decimals are identical.

The spelling of 2190806148 in words is "two billion, one hundred ninety million, eight hundred six thousand, one hundred forty-eight".