1989034704 has 60 divisors (see below), whose sum is σ = 5772713856. Its totient is φ = 663010272.

The previous prime is 1989034699. The next prime is 1989034709. The reversal of 1989034704 is 4074309891.

1989034704 is a `hidden beast` number, since 1 + 98 + 90 + 3 + 470 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1989034699) and next prime (1989034709).

It is a self number, because there is not a number n which added to its sum of digits gives 1989034704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1989034709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251904 + ... + 259679.

Almost surely, 2^1989034704 is an apocalyptic number.

It is an amenable number.

1989034704 is an abundant number, since it is smaller than the sum of its proper divisors (3783679152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1989034704 is an equidigital number, since it uses as much as digits as its factorization.

1989034704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511606 (or 511588 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1989034704 is about 44598.5953142024. The cubic root of 1989034704 is about 1257.6142610993.

The spelling of 1989034704 in words is "one billion, nine hundred eighty-nine million, thirty-four thousand, seven hundred four".