981041958 has 72 divisors (see below), whose sum is σ = 2309818680. Its totient is φ = 300792960.

The previous prime is 981041923. The next prime is 981041969. The reversal of 981041958 is 859140189.

981041958 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1584573 + ... + 1585191.

It is an arithmetic number, because the mean of its divisors is an integer number (32080815).

Almost surely, 2^981041958 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 981041958, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1154909340).

981041958 is an abundant number, since it is smaller than the sum of its proper divisors (1328776722).

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

981041958 is a wasteful number, since it uses less digits than its factorization.

981041958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 981041958 is about 31321.5893274910. The cubic root of 981041958 is about 993.6402925289.

The spelling of 981041958 in words is "nine hundred eighty-one million, forty-one thousand, nine hundred fifty-eight".