10781046 has 32 divisors (see below), whose sum is σ = 24520320. Its totient is φ = 3509352.

The previous prime is 10781039. The next prime is 10781047. The reversal of 10781046 is 64018701.

It is a happy number.

10781046 is a nontrivial binomial coefficient, being equal to C(4644, 2).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10781047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1 + ... + 4643.

It is an arithmetic number, because the mean of its divisors is an integer number (766260).

Almost surely, 2^10781046 is an apocalyptic number.

10781046 is the 4643-rd triangular number and also the 2322-nd hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10781046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12260160).

10781046 is an abundant number, since it is smaller than the sum of its proper divisors (13739274).

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

10781046 is a wasteful number, since it uses less digits than its factorization.

10781046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4697 (or 4691 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 10781046 is about 3283.4503194049. The cubic root of 10781046 is about 220.9125046929.

Adding to 10781046 its reverse (64018701), we get a palindrome (74799747).

The spelling of 10781046 in words is "ten million, seven hundred eighty-one thousand, forty-six".