1990963924 has 12 divisors (see below), whose sum is σ = 3490379424. Its totient is φ = 993712664.

The previous prime is 1990963903. The next prime is 1990964011. The reversal of 1990963924 is 4293690991.

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, 439792 + ... + 444295.

It is an arithmetic number, because the mean of its divisors is an integer number (290864952).

Almost surely, 2^1990963924 is an apocalyptic number.

It is an amenable number.

1990963924 is a deficient number, since it is larger than the sum of its proper divisors (1499415500).

1990963924 is a wasteful number, since it uses less digits than its factorization.

1990963924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884654 (or 884652 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 52.

The square root of 1990963924 is about 44620.2187802794. The cubic root of 1990963924 is about 1258.0207280461.

The spelling of 1990963924 in words is "one billion, nine hundred ninety million, nine hundred sixty-three thousand, nine hundred twenty-four".