10780438 has 4 divisors (see below), whose sum is σ = 16170660. Its totient is φ = 5390218.

The previous prime is 10780433. The next prime is 10780447. The reversal of 10780438 is 83408701.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10780433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2695108 + ... + 2695111.

It is an arithmetic number, because the mean of its divisors is an integer number (4042665).

Almost surely, 2^10780438 is an apocalyptic number.

10780438 is a deficient number, since it is larger than the sum of its proper divisors (5390222).

10780438 is an equidigital number, since it uses as much as digits as its factorization.

10780438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5390221.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 10780438 is about 3283.3577325659. The cubic root of 10780438 is about 220.9083518081.

The spelling of 10780438 in words is "ten million, seven hundred eighty thousand, four hundred thirty-eight".