981203244 has 144 divisors (see below), whose sum is σ = 2845221120. Its totient is φ = 261636480.

The previous prime is 981203233. The next prime is 981203261. The reversal of 981203244 is 442302189.

It is a super-2 number, since 2×981203244² = 1925519612072247072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 792594 + ... + 793830.

It is an arithmetic number, because the mean of its divisors is an integer number (19758480).

Almost surely, 2^981203244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 981203244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1422610560).

981203244 is an abundant number, since it is smaller than the sum of its proper divisors (1864017876).

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

981203244 is a wasteful number, since it uses less digits than its factorization.

981203244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348 (or 1339 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 981203244 is about 31324.1638994563. The cubic root of 981203244 is about 993.6947419454.

The spelling of 981203244 in words is "nine hundred eighty-one million, two hundred three thousand, two hundred forty-four".