100778082 has 32 divisors (see below), whose sum is σ = 208837440. Its totient is φ = 32398080.

The previous prime is 100778059. The next prime is 100778089. The reversal of 100778082 is 280877001.

It is not an unprimeable number, because it can be changed into a prime (100778089) 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, 19593 + ... + 24195.

It is an arithmetic number, because the mean of its divisors is an integer number (6526170).

Almost surely, 2^100778082 is an apocalyptic number.

100778082 is an abundant number, since it is smaller than the sum of its proper divisors (108059358).

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

100778082 is a wasteful number, since it uses less digits than its factorization.

100778082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4738.

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 100778082 is about 10038.8287165386. The cubic root of 100778082 is about 465.3596200607.

The spelling of 100778082 in words is "one hundred million, seven hundred seventy-eight thousand, eighty-two".