106778844 has 24 divisors (see below), whose sum is σ = 276834320. Its totient is φ = 35592912.

The previous prime is 106778843. The next prime is 106778851. The reversal of 106778844 is 448877601.

It is a super-2 number, since 2×106778844² = 22803443051952672, 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 106778844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106778843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494239 + ... + 494454.

Almost surely, 2^106778844 is an apocalyptic number.

It is an amenable number.

106778844 is an abundant number, since it is smaller than the sum of its proper divisors (170055476).

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

106778844 is a wasteful number, since it uses less digits than its factorization.

106778844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988706 (or 988698 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 106778844 is about 10333.3849246024. The cubic root of 106778844 is about 474.4186335218.

The spelling of 106778844 in words is "one hundred six million, seven hundred seventy-eight thousand, eight hundred forty-four".