1990141444 has 12 divisors (see below), whose sum is σ = 3488021068. Its totient is φ = 993564000.

The previous prime is 1990141429. The next prime is 1990141451. The reversal of 1990141444 is 4441410991.

It can be written as a sum of positive squares in 2 ways, for example, as 936360000 + 1053781444 = 30600^2 + 32462^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 373707 + ... + 378994.

Almost surely, 2^1990141444 is an apocalyptic number.

It is an amenable number.

1990141444 is a deficient number, since it is larger than the sum of its proper divisors (1497879624).

1990141444 is a wasteful number, since it uses less digits than its factorization.

1990141444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753366 (or 753364 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1990141444 is about 44611.0013785837. The cubic root of 1990141444 is about 1257.8474720353.

The spelling of 1990141444 in words is "one billion, nine hundred ninety million, one hundred forty-one thousand, four hundred forty-four".