1989110952 has 64 divisors (see below), whose sum is σ = 5532624000. Its totient is φ = 662159232.

The previous prime is 1989110933. The next prime is 1989110983. The reversal of 1989110952 is 2590119891.

It is a super-3 number, since 3×1989110952³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1989110898 and 1989110907.

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 15 ways as a sum of consecutive naturals, for example, 169053 + ... + 180435.

It is an arithmetic number, because the mean of its divisors is an integer number (86447250).

Almost surely, 2^1989110952 is an apocalyptic number.

1989110952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1989110952 is an abundant number, since it is smaller than the sum of its proper divisors (3543513048).

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

1989110952 is a wasteful number, since it uses less digits than its factorization.

1989110952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12207 (or 12197 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 45.

The square root of 1989110952 is about 44599.4501311395. The cubic root of 1989110952 is about 1257.6303307614.

The spelling of 1989110952 in words is "one billion, nine hundred eighty-nine million, one hundred ten thousand, nine hundred fifty-two".