1990077104 has 20 divisors (see below), whose sum is σ = 3864946080. Its totient is φ = 992671680.

The previous prime is 1990077091. The next prime is 1990077127. The reversal of 1990077104 is 4017700991.

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, 140984 + ... + 154455.

It is an arithmetic number, because the mean of its divisors is an integer number (193247304).

Almost surely, 2^1990077104 is an apocalyptic number.

It is an amenable number.

1990077104 is a deficient number, since it is larger than the sum of its proper divisors (1874868976).

1990077104 is a wasteful number, since it uses less digits than its factorization.

1990077104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295868 (or 295862 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 1990077104 is about 44610.2802501845. The cubic root of 1990077104 is about 1257.8339167545.

The spelling of 1990077104 in words is "one billion, nine hundred ninety million, seventy-seven thousand, one hundred four".