981907344 has 120 divisors (see below), whose sum is σ = 3010468032. Its totient is φ = 296290560.

The previous prime is 981907331. The next prime is 981907373. The reversal of 981907344 is 443709189.

981907344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×981907344² = 1928284064402268672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 981907344.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415414 + ... + 417770.

Almost surely, 2^981907344 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 981907344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1505234016).

981907344 is an abundant number, since it is smaller than the sum of its proper divisors (2028560688).

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

981907344 is a wasteful number, since it uses less digits than its factorization.

981907344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645 (or 2636 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 981907344 is about 31335.4008112231. The cubic root of 981907344 is about 993.9323730318.

The spelling of 981907344 in words is "nine hundred eighty-one million, nine hundred seven thousand, three hundred forty-four".