1081380344 has 16 divisors (see below), whose sum is σ = 2211914520. Its totient is φ = 491536480.

The previous prime is 1081380343. The next prime is 1081380373. The reversal of 1081380344 is 4430831801.

It is a self number, because there is not a number n which added to its sum of digits gives 1081380344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081380343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6144119 + ... + 6144294.

Almost surely, 2^1081380344 is an apocalyptic number.

It is an amenable number.

1081380344 is an abundant number, since it is smaller than the sum of its proper divisors (1130534176).

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

1081380344 is a wasteful number, since it uses less digits than its factorization.

1081380344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12288430 (or 12288426 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 1081380344 is about 32884.3480093494. The cubic root of 1081380344 is about 1026.4224847032.

The spelling of 1081380344 in words is "one billion, eighty-one million, three hundred eighty thousand, three hundred forty-four".