1958967660 has 96 divisors (see below), whose sum is σ = 5978407680. Its totient is φ = 476381952.

The previous prime is 1958967653. The next prime is 1958967679. The reversal of 1958967660 is 667698591.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1958967660.

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 31 ways as a sum of consecutive naturals, for example, 49611 + ... + 79869.

It is an arithmetic number, because the mean of its divisors is an integer number (62275080).

Almost surely, 2^1958967660 is an apocalyptic number.

1958967660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1958967660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2989203840).

1958967660 is an abundant number, since it is smaller than the sum of its proper divisors (4019440020).

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

1958967660 is a wasteful number, since it uses less digits than its factorization.

1958967660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30367 (or 30365 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 57.

The square root of 1958967660 is about 44260.2266148740. The cubic root of 1958967660 is about 1251.2451933163.

The spelling of 1958967660 in words is "one billion, nine hundred fifty-eight million, nine hundred sixty-seven thousand, six hundred sixty".