1890122204 has 48 divisors (see below), whose sum is σ = 3622993920. Its totient is φ = 859481280.

The previous prime is 1890122189. The next prime is 1890122207. The reversal of 1890122204 is 4022210981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890122207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296054 + ... + 302370.

It is an arithmetic number, because the mean of its divisors is an integer number (75479040).

Almost surely, 2^1890122204 is an apocalyptic number.

It is an amenable number.

1890122204 is a deficient number, since it is larger than the sum of its proper divisors (1732871716).

1890122204 is a wasteful number, since it uses less digits than its factorization.

1890122204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6498 (or 6496 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 1890122204 is about 43475.5356953770. The cubic root of 1890122204 is about 1236.4122368576.

The spelling of 1890122204 in words is "one billion, eight hundred ninety million, one hundred twenty-two thousand, two hundred four".