1990141204 has 12 divisors (see below), whose sum is σ = 3483592084. Its totient is φ = 994829184.

The previous prime is 1990141151. The next prime is 1990141249. The reversal of 1990141204 is 4021410991.

It can be written as a sum of positive squares in 2 ways, for example, as 636048400 + 1354092804 = 25220^2 + 36798^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41127 + ... + 75310.

Almost surely, 2^1990141204 is an apocalyptic number.

It is an amenable number.

1990141204 is a deficient number, since it is larger than the sum of its proper divisors (1493450880).

1990141204 is a wasteful number, since it uses less digits than its factorization.

1990141204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120714 (or 120712 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1990141204 is about 44610.9986886642. The cubic root of 1990141204 is about 1257.8474214722.

The spelling of 1990141204 in words is "one billion, nine hundred ninety million, one hundred forty-one thousand, two hundred four".