981644202 has 216 divisors, whose sum is σ = 2801975904. Its totient is φ = 243064800.

The previous prime is 981644201. The next prime is 981644207. The reversal of 981644202 is 202446189.

981644202 is a `hidden beast` number, since 9 + 8 + 1 + 644 + 2 + 0 + 2 = 666.

981644202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (981644201) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 14651373 + ... + 14651439.

Almost surely, 2^981644202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 981644202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1400987952).

981644202 is an abundant number, since it is smaller than the sum of its proper divisors (1820331702).

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

981644202 is a wasteful number, since it uses less digits than its factorization.

981644202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 981644202 is about 31331.2017324583. The cubic root of 981644202 is about 993.8435769006.

The spelling of 981644202 in words is "nine hundred eighty-one million, six hundred forty-four thousand, two hundred two".