10781442 has 48 divisors (see below), whose sum is σ = 27361152. Its totient is φ = 3003840.

The previous prime is 10781423. The next prime is 10781461. The reversal of 10781442 is 24418701.

It is an interprime number because it is at equal distance from previous prime (10781423) and next prime (10781461).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4123 + ... + 6209.

It is an arithmetic number, because the mean of its divisors is an integer number (570024).

Almost surely, 2^10781442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10781442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13680576).

10781442 is an abundant number, since it is smaller than the sum of its proper divisors (16579710).

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

10781442 is a wasteful number, since it uses less digits than its factorization.

10781442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143 (or 2140 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 10781442 is about 3283.5106212711. The cubic root of 10781442 is about 220.9152094484.

The spelling of 10781442 in words is "ten million, seven hundred eighty-one thousand, four hundred forty-two".