1989704370 has 16 divisors (see below), whose sum is σ = 4775290560. Its totient is φ = 530587824.

The previous prime is 1989704369. The next prime is 1989704419. The reversal of 1989704370 is 734079891.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33161710 + ... + 33161769.

It is an arithmetic number, because the mean of its divisors is an integer number (298455660).

Almost surely, 2^1989704370 is an apocalyptic number.

1989704370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1989704370 is an abundant number, since it is smaller than the sum of its proper divisors (2785586190).

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

1989704370 is a wasteful number, since it uses less digits than its factorization.

1989704370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66323489.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 1989704370 is about 44606.1023852118. The cubic root of 1989704370 is about 1257.7553826548.

The spelling of 1989704370 in words is "one billion, nine hundred eighty-nine million, seven hundred four thousand, three hundred seventy".