981436662 has 56 divisors (see below), whose sum is σ = 2220014160. Its totient is φ = 325250640.

The previous prime is 981436649. The next prime is 981436667. The reversal of 981436662 is 266634189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981436667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 262039 + ... + 265757.

It is an arithmetic number, because the mean of its divisors is an integer number (39643110).

Almost surely, 2^981436662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 981436662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1110007080).

981436662 is an abundant number, since it is smaller than the sum of its proper divisors (1238577498).

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

981436662 is a wasteful number, since it uses less digits than its factorization.

981436662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3920 (or 3905 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 981436662 is about 31327.8895235539. The cubic root of 981436662 is about 993.7735322302.

The spelling of 981436662 in words is "nine hundred eighty-one million, four hundred thirty-six thousand, six hundred sixty-two".