1990369036 has 12 divisors (see below), whose sum is σ = 3564149512. Its totient is φ = 972040608.

The previous prime is 1990369021. The next prime is 1990369037. The reversal of 1990369036 is 6309630991.

It is not an unprimeable number, because it can be changed into a prime (1990369037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5785785 + ... + 5786128.

Almost surely, 2^1990369036 is an apocalyptic number.

It is an amenable number.

1990369036 is a deficient number, since it is larger than the sum of its proper divisors (1573780476).

1990369036 is a wasteful number, since it uses less digits than its factorization.

1990369036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11571960 (or 11571958 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 46.

The square root of 1990369036 is about 44613.5521562675. The cubic root of 1990369036 is about 1257.8954192320.

The spelling of 1990369036 in words is "one billion, nine hundred ninety million, three hundred sixty-nine thousand, thirty-six".