100778338 has 8 divisors (see below), whose sum is σ = 151210332. Its totient is φ = 50374896.

The previous prime is 100778333. The next prime is 100778339. The reversal of 100778338 is 833877001.

It can be written as a sum of positive squares in 2 ways, for example, as 74080449 + 26697889 = 8607^2 + 5167^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 100778297 and 100778306.

It is not an unprimeable number, because it can be changed into a prime (100778333) 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, 8856 + ... + 16732.

Almost surely, 2^100778338 is an apocalyptic number.

100778338 is a deficient number, since it is larger than the sum of its proper divisors (50431994).

100778338 is an equidigital number, since it uses as much as digits as its factorization.

100778338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14276.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 100778338 is about 10038.8414670220. The cubic root of 100778338 is about 465.3600141013.

The spelling of 100778338 in words is "one hundred million, seven hundred seventy-eight thousand, three hundred thirty-eight".