2190783428 has 6 divisors (see below), whose sum is σ = 3833871006. Its totient is φ = 1095391712.

The previous prime is 2190783403. The next prime is 2190783433. The reversal of 2190783428 is 8243870912.

It can be written as a sum of positive squares in only one way, i.e., 1342343044 + 848440384 = 36638^2 + 29128^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273847925 + ... + 273847932.

It is an arithmetic number, because the mean of its divisors is an integer number (638978501).

Almost surely, 2^2190783428 is an apocalyptic number.

It is an amenable number.

2190783428 is a deficient number, since it is larger than the sum of its proper divisors (1643087578).

2190783428 is a wasteful number, since it uses less digits than its factorization.

2190783428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547695861 (or 547695859 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 2190783428 is about 46805.8054946179. The cubic root of 2190783428 is about 1298.7726933630.

The spelling of 2190783428 in words is "two billion, one hundred ninety million, seven hundred eighty-three thousand, four hundred twenty-eight".